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Sadaf Awan

Wisdom Thought

The one who likes to see the dreams, night is short for them and who One who likes to fulfill the dreams, day is short for them.

Friday, October 5, 2012

DEFINING COMPARATIVE EDUCATION: CONCEPTIONS

Source: Harold J. Noah, "Defining Comparative Education: Conceptions," in Reginald Edwards et al, eds., Relevant Methods in Comparative Education (Hamburg: UNESCO Institute for Education, 1973), pp. 109-117.

 

 

The last decade has witnessed not only a vast burgeoning of the literature in and about comparative education, but also a radical change in the rationales, methods, and goals of the field. Whether this change in landscape has been for the better or the worse I shall leave for colleagues to judge.

But imagine the situation of R. V. Winkle, professor of comparative education, who had fallen asleep at the end of 1959, to awaken again only in 1970. His slumbers would have commenced with his subject dominated by the works of Kandel, Hans, Lauwerys, and Rossello. He would have been aware of only the barest intimations of a more deliberately social-scientific approach. On awakening he would have found a new style of work bidding strongly to take over the field, though without having won over by any means all of its practitioners. In any event, he would have had a formidable reading assignment awaiting his attention!

Much of the justification for undertaking comparative education studies prior to 1960 was in terms of their potential either for countering parochialism or ethnocentrism, or for assisting in the improvement of education at home. Basically, researchers and writers were asking such questions as: What is characteristically French about the French secondary school curriculum? or, What is happening in German schools that we might profit from? The theme of recent work may perhaps be seen as a progressive transfer of attention from country characteristics to problems, and from problems to the specification of relationships and the formulation and testing of theories. This is not to suggest, of course, that the new style has found universal and unquestioned acceptance, or that the previous genre of work is without merit. On the contrary, we continue to see, and shall continue to want studies with such titles as, "Higher Education Reform in Germany", "The Technical School in the Dominican Republic", "Local Initiatives in Pre-School Education in the Soviet Union", and so on. Moreover, all is not plain sailing in the new mode. The conceptual and practical problems of conducting theory-oriented comparative research are not only not immediately and obviously tractable, but are also being widely aired.1

In this change of emphasis comparative education is clearly following a course already charted in economics, sociology, and political science. Economics has ventured furthest, perhaps. It has now left far behind its earlier preoccupation with the identification and description of economic institutions and has become a complex endeavour to explain and predict behaviour connected with making choices among alternatives. Sociology, similarly, has moved beyond the description and classification of social units to analysis and prediction of their interaction. And, just at the present time, some of the most fruitful work of relevance for comparative education is currently appearing from political scientists pursuing a cross-national approach.2 Clearly, these parallel developments have not occurred simply by chance: they express a common reaction to a common set of methodological potentialities and problems. The challenge to move from the particular to the general, from identificationdescription-classification to hypothesis-testing, theory building and prediction is pervasive.

One test of the progress of a science is its acquisition of a terminology. In developing "technical terms", words are often borrowed from everyday use, and then more precisely defined for technical purposes. One thinks immediately of the use in physics of the term "velocity" (with its essential connotation of direction as distinct from the unvectored concept, "speed"); or, in economics our attempt to define "demand" as "ability and willingness to pay", and not simply to retain its common meaning of "need" or "desire". Indeed, on occasion the most far-reaching result of scientific study of a phenomenon appears to be the recognition of a new, more powerful, albeit more limited, definition of a term.

Consider what is happening to the term "comparative" in the title that denotes our field. I believe that we are about to move rather rapidly away from the everyday meaning of the word to a much more technical meaning. This rather radical redefinition of the term "comparative education" will involve at once a limitation and an extension of its scope. The impulse toward limitation will arise because we have come to realise that many studies that happen to use international and foreign data are not to be considered "comparative" simply by virtue of that fact; and the impulse toward extension will occur because many studies conducted on the basis of data drawn from within a single country nevertheless have a valid claim to be considered comparative, once we define the term in a way that reflects the function of comparison in systematic explanation.

Clearly, while this process is continuing we can expect a rather lively controversy on just what the term should and does mean. In part, I suppose, this is what this conference is about. The summary of our deliberations may legitimately expect to record what is happening to the nature of our field, and if we are optimistic, we can even hope to influence it.

Comparative education has mistakenly come to be identified either with the study of education in another country, or with studies using data drawn from more than one country. This view of what constitutes comparative education enjoys the sanction of both common usage and common sense. One finds out what is going on abroad and compares it with what is happening at home, often with a practical programme of amelioration in view.3 Certainly, many essays in comparative education are of this type. Alternatively, one uses a collection of multi-national data to identify, describe, and compare relationships (usually correlations) within education, or between education and other social phenomena.4 Again, I must emphasise that to call such studies "comparative" agrees with common sense and usage. But the weakness of that position is that it establishes as the criterion for classification as a comparative study the mere presence or absence of foreign or multi-national characteristics of data, and by implication ignores, or even denies, the existence of a characteristically comparative method. We are hindered from asking a set of key questions: Are all inter-, cross-, or multi-national studies ipso facto comparative? Are all comparative studies necessarily either inter-, cross-, or multi-national? What, indeed, are the necessary and sufficient conditions for a study to be comparative? Does there exist a characteristic comparative approach to a problem? If so, what is it?

Nations constitute one important set of systems that attract our attention, and we have employed so-called comparative studies largely to identify and describe the attributes of such national systems. We have ended up with "nominal" statements of the type: "In country A, the secondary school curriculum is such-and-such; while in country B. it is so-and-so; and in countries C, D, and E, it is something else." Or, we might say in quantitative terms: "In country A, the fraction of the GNP spent on education is high (7-8 percent);in country B, it is moderate (5 percent);in country C, it is low (21/2-3 percent)."

However, as the social sciences have extended the range of questions they ask and as comparative studies (among them, comparative education) have matured, so we have begun to comprehend a fundamentally different role for comparison, whether conducted on the basis of national systems, or of other units. The key to this transformation in our thought lies in the attempt inherent in the social sciences to explain and predict, rather than merely to identify and describe. A simplified example may, perhaps, help illustrate the new emphasis in comparative work:

Let us assume that we wish to explain (and, perhaps predict) the relationship between the size of a family's income and the probability of the children in the family enrolling in full-time post-secondary education. If we find mirabile dictu that this relationship is the same from country to country, then we have no need to proceed further. We can immediately make a general (that is, a non-system-specific) statement defining a relationship between family income and the probability of post-secondary enrolment that is valid without including the names of any countries. But matters are more complicated if we are faced with the more Iikely case in which relationships differ from country to country. For example, we might find that while all countries exhibit a positive relationship between these two variables, the correlation is very strong in some countries, only moderate in others, and rather weak in a third group. Or. putting it in the language of least-squares linear regression analysis, we find that our best fitting equation explains different proportions of the observed variance in different countries. Let us assume, too, that no amount of within-system adjustment of either the independent or dependent variables alters the fundamental fact that in different countries similar levels of family income are associated with (or, "produce") different probabilities of a family's children attending post-secondary institutions.

This is the paradigm situation calling for employment of the comparative method. We now have to ask, what are the system-level factors that are at work, influencing the interaction of within-system variables? As we shift the level of analysis from consideration of within-system to system-level factors, we are engaged in trying out the effect upon these different within-system relationships of introducing additional, theoretically justifiable independent variables, in the form of system characteristics. We continue to do this until we can no longer (a) increase further the proportion of observed variance explained within each country; and, (b) reduce further the differences among countries in the proportions of observed variance explained.

To continue with our example, we might try out in turn the effect of including among our explanatory variables such system-level factors as "degree of income inequality", "ratio of the number of secondary school graduates to the size of the corresponding age-cohort", "proportion of direct costs of postsecondary education defrayed from non-tuition sources of finance", and "recency of the post-secondary institutions enrolling 5 percent (or 10 percent) of the corresponding age-cohort". We stop when the inclusion of further theoretically justifiable system variables yields insignificant returns in terms of (a) and (b) above.5

Only at this point do we introduce the names of countries in explanation, ascribing the remaining differences in proportions of variance explained to the unanalysed or unanalysable peculiarities of the countries. In this explanatory model, country names are used to tag bundles of unexplained variance. The object of the exercise, then, is not, as in traditional comparative studies, to extend and enrich as far as possible, the connotational content of country names; instead, we seek to extend and enrich to the limit general "law-like", cross-system statements, bringing in country (that is, system) names only when our power accurately to generalise across countries fails. A comparative study is essentially an attempt as far as possible to replace the names of systems (countries) by the names of concepts (variables).

In this style of comparative study, for the example we have taken, we might hope to make a statement of the type:

In all countries, size of family income is positively associated with the probability of children in the family being enrolled in full-time post-secondary schooling, and differences in family income can explain at least one-half of within-country differences in the probability of enrolment. In those countries where income inequality is high and the proportion of costs defrayed from non-tuition sources is low, the explanatory power of differences in family income rises to at least three-quarters. Consideration of the fraction of the age-group graduated from secondary education, and the recency of growth of the postsecondary system does not improve explanation appreciably in any case except in the Soviet-type countries, where these factors do seem to be important. 6

For our present purpose, the crux of all this is the necessity at some point in the analysis to stop further withincountry analysis and to change the level of analysis to incorporate among-country variables. For this is the essential condition for a study to be classified as "comparative": data are collected at more than one level and analysis also proceeds at more than one level. With this criterion we can attempt answers to the questions posed above.

Q. Does there exist a characteristic comparative approach to solving a problem, testing a hypothesis, formulating a theory?

A. Yes. It involves formulating the analysis so that within-system relations are explained as fully as possible using within-system variabIes, comparing the characteristics and differences of such explanations across systems, and trying to explain these characteristics and differences by changing the level of analysis to take account of the operation of variables identified at the level of systems.

Q. Are all comparative studies necessarily either inter-, cross-, or multi-national?

A. No, although many are. National units commonly form the matrix for data collection and governments are willing to finance studies (either directly, or indirectly through the international agencies) as part of the international sport of competitive growthmanship. But we ought to insist that a study within, say, the United States of the relationship between family income and the probability of the family's children enrolling in post-secondary education, formulated in terms of South vs. non-South, or urban vs. rural areas, or Whites vs. Blacks, has an equal chance with an international study of employing the comparative approach, as defined above. 7

Q. Are all inter-, cross-, or multinational studies ipso facto comparative?

A. No. Many studies use data from more than one country, but restrict the variables considered or the analysis employed to a single level, either within-system or whole-systems but not both. Thus, we have seen multi-national analyses of trends in educational expenditures that are restricted to juxtaposing country-level relationships (for example, percentages of GNP devoted to education), and there are multi-country studies of curriculum restricted to within-country univariates (for example, the amounts of time assigned to different school subjects). In the technical sense of the term that we have suggested above, such studies are not comparative.

NOTES
  1. See Bruce M. Russett et al. (1964), Part B "The Analysis of Trends and Patterns", especially "Multifactor Explanations of Social Change", pp. 311-321. Also R. Merritt and S. Rokkan (1966) Bernhard Dieckmann (1970), Dieter Berstecher (1970), S. Rokkan (1968), and A. Przeworski and H. Teune (1970). Some points presented in this paper rely heavily on Part One of the latter book. Each of the volumes cited here contains important bibliographies. [BACK]
  2. See Przeworski and Teune (1970), D.E. Apter (1968). R.C. Macridis (1968), H.A. Scarrow (1969) and P. Shoup (1968). G.A. Almond and S. Verba (1965) remains a work of primary importance in the field of comparative political/ educational analysis, although see Sheuch's contribution in Rokkan (1968) for a critique of many aspects of the Almond and Verba work. [BACK]
  3. The locus classicus is M.-A. Jullien's "Esquisse . . . " reprinted in S. Fraser (1964). [BACK]
  4. See, for example, Michel Debeauvais (1970). [BACK]
  5. Often, of course, we must stop short of this point, owing to lack of time and money. [BACK]
  6. Such a statement might set the stage for trying to develop a cross-nationally valid theory of the link between family income and family demand for schooling in general, and not just for post-secondary education. [BACK]
  7. Most participants at this conference are specifically concerned with the comparative study of educational phenomena based on national units. Perhaps, therefore, our field might be better termed "cross-national comparative education". This nomenclature would have the merit of implying the existence of other bases or units for undertaking comparative analysis. Not only would we want to retain links with comparative studies using other bases, but we would recognise the existence of a common logic underlying all comparative analysis, and be drawn to follow it in our work. [BACK]
REFERENCES
Almond, G.A., and S. Verba. The Civic Culture. Boston: Little, Brown, 1965.
Apter, D.E. Some Conceptual Approaches to the Study of Modernization. Englewood Cliffs, N.J.: Prentice Hall, 1968.
Berstecher, D. Zur Theorie und Technik des internationalen Vergleichs: Das Beispiel der Bildungsforschung. Stuttgart: Klett, 1970.
Debeauvais, M. Comparative Study of Educational Expenditure and Its Trends in OECD Countries since 1950. Paris: OECD, 1970.
Dieckmann, B. Zur Strategie des systematischen internationalen Vergleichs: Probleme des Datenbasis und der Entwicklungsbegriffe. Stuttgart: Klett, 1970.
Fraser, S. Jullien's Plan for Comparative Education, 1826- 1827. New York: Teachers College, Columbia University, 1964.
Macridis, R.C. The Comparative Study of Politics. New York: Random House, 1968.
Merritt, R., and S. Rokkan (eds.). Comparing Nations: The Uses of Quantitative Data in Cross-National Research. New Haven: Yale University Press, 1966.
Przeworski, A., and H. Teune. The Logic of Comparative Social Inquiry. New York: Wiley, 1970.
Rokkan, S. (ed.). Comparative Research across Cultures and Nations. Paris/The Hague: Mouton, 1968. (Especially papers by H.R. Alker, Jr., L. Benson, A.J.F. Köbben, D. Lerner, G. Ohlin, E.K. Scheuch.)
Russett, B.M. et al. World Handbook of Political and Social Indicators. New Haven: Yale University Press, 1964.
Scarrow, H.A. Comparative Political Analysis. New York: Harper & Row, 1969.
Shoup, P. "Comparing Communist Nations: Prospects for an Empirical Approach". American Political Science Review 62 (1968).

Sunday, May 13, 2012

REVIEW OF RELATED LITERATURE


By Misbah Rehman.
M.Phil. Education
Department of Education
University of Karachi.
 
INTRODUCTION
            For any worthwhile study in any field of knowledge the research worker needs an adequate familiarity with library and its many resources. Only then will an effective search for specialized knowledge be possible. The search for reference material is time consuming but very fruitful phase of a research program. Every investigator must know what sources are available in his field of inquiry, which of them he is likely to use and where and how to find them.
            In the field of education, as in other field too, the research    worker need to acquire up to date information about what has been thought and in particular area from which he intends to take up a problem for research. But it is found that generally the extent of important, up to date information regarding educational research and ideas possessed by educational worker is very limited.
            Availability of adequate information and possession of sufficient familiarity with it, how ever are not one and the same thing. Availability of adequate information about educational thought and research does not by itself result in possession of its knowledge by the researcher. The researcher must apply himself keenly to the task. On the other hand a researcher may be very keen to possess up to date information regarding his field, and may try hard to be posted up to date, and yet fail to get enough information due to the non existence of sources of such information.  

What is a review of the literature?

A literature review is an account of what has been published on a topic by accredited scholars and researchers. Occasionally you will be asked to write one as a separate assignment (sometimes in the form of an annotated bibliography), but more often it is part of the introduction to an essay, research report, or thesis. In writing the literature review, your purpose is to convey to your reader what knowledge and ideas have been established on a topic, and what their strengths and weaknesses are. As a piece of writing, the literature review must be defined by a guiding concept (e.g., your research objective, the problem or issue you are discussing or your argumentative thesis). It is not just a descriptive list of the material available, or a set of summaries
Besides enlarging your knowledge about the topic, writing a literature review lets you gain and demonstrate skills in two areas
  1. information seeking: the ability to scan the literature efficiently, using manual or computerized methods, to identify a set of useful articles and books
  2. Critical appraisal: the ability to apply principles of analysis to identify unbiased and valid studies.

DEFINITIONS OF LITERATURE REVIEW

According to L.R.Gay,
The review of related literature involves the systematic identification, location, and analysis of document containing information related to the research problem.

According to John W.Creswell
A literature review is a written summary of journal articles, books, and other documents that describes the past and current state of information; organizes the literature into topics; and documents need for a proposed study.

The process of reading, analyzing, evaluating, and summarizing scholarly materials about a specific topic.

A literature review is a body of text that aims to review the critical points of current knowledge including substantive findings as well as theoretical and methodological contributions to a particular topic.

Literature Reviews Vary at Different Stages of the Study:
1. Preliminary Literature Review - helps to phrase foreshadowed problem statements and to develop a theoretical frame,
2. Annotated Bibliography - a way to remind oneself of the literature surveyed
3. Extensive Literature Review - a theoretically framed in-depth review of all relevant literature to the study 

PURPOSES:
  • It provides a theoretical background to the study.
  • It reviews the means by which researcher establishes the link between what he is proposing to examine and what has already been studied. In simple words, it helps to refine research methodology.
  • Through the literature review researcher are able to show his finding has contributing to existing body of knowledge in his profession.
  • It enables researcher to contextualize his findings
  • The literature review demonstrate the under lying assumptions (i.e. proposition) behind the research question that are the central of research proposal.
  • The literature review provides the researcher with an opportunity to identify the gaps that may exist in the body of literature and to provide a rationale for how the proposed study may contribute to the existing body of knowledge.
  • The literature review helps the researcher to refine the researcher questions and embed them in guiding hypotheses that provide possible directions the researcher may follow.

SOURCES OF LITERATURE:
There are generally two types of sources.
1. Primary sources literature
2. Secondary sources literature

PRIMARY SOURCE LITERATURE:
Primary source literature consists of literature reported by the individual(s) who actually conducted the research or who originated the ideas. Or we can say that direct source of information. Following are the types of direct source.
  1. Periodical literature found in journals,
  2. Books, monographs, yearbooks and bulletins,
  3. Graduate, doctoral and other theses ,and
  4. Certain miscellaneous sources-like government publications on education.
 SECONDARY SOURCE LITERATURE:
Secondary source literature, however, is literature that summarizes primary sources. It does not represent material published by original researcher or the creator of the idea. These sources also called indirect source of information.
  1. Encyclopedia of education.
  2. Education indexes.
  3. Educational abstracts.
  4. Bibliographies and directories.
  5. Bibliographical references
  6. Quotation sources
  7. Miscellaneous other sources.
 Typically researcher will locate both primary and secondary sources. But it is best to report mostly primary sources. Primary sources present the literature in the original state and present the view point of the original author. Primary sources also provide the detail of original research better than secondary sources. Secondary sources are helpful as researcher begin his review, to explore and determine the range of material on a topic.

  How useful are the following sources?

Journal articles: these are good especially for up-to-date information. Bear in mind, though, that it can take up to two years to publish articles. They are frequently used in literature reviews because they offer a relatively concise, up-to-date format for research, and because all reputable journals are refereed (i.e. editors publish only the most relevant and reliable research).
Books: books tend to be less up-to-date as it takes longer for a book to be published than for a journal article. Text books are unlikely to be useful for including in your literature review as they are intended for teaching, not for research, but they do offer a good starting point from which to find more detailed sources.
Conference proceedings: these can be useful in providing the latest research, or research that has not been published. They are also helpful in providing information on which people are currently involved in which research areas, and so can be helpful in tracking down other work by the same researchers.
Government/corporate reports: many government departments and      corporations commission or carry out research. Their published findings can          provide a useful source of information, depending on your field of study.
Newspapers: since newspapers are generally intended for a general (not specialized) audience, the information they provide will be of very limited use for your literature review. Often newspapers are more helpful as providers of information about recent trends, discoveries or changes, e.g. announcing changes in government policy, but you should then search for more detailed information in other sources.
Theses and dissertations: these can be useful sources of information. However there are disadvantages: 1) they can be difficult to obtain since they are not published, but are generally only available from the library shelf or through inter library loan; 2) the student who carried out the research may not be an experienced researcher and therefore you might have to treat their findings with more caution than published research.
Internet: the fastest-growing source of information is on the Internet. It is impossible to characterize the information available but here are some hints about using electronic sources: 1) bear in mind that anyone can post information on the Internet so the quality may not be reliable, 2) the information you find may be intended for a general audience and so not be                 
suitable for inclusion in your literature review (information for a general audience is usually less detailed) and 3) more and more refereed electronic journals (e-journals) are appearing on the Internet - if they are refereed it means that there is an editorial board that evaluates the work before publishing it in their e-journal, so the quality should be more reliable (depending on the reputation of the journal).
CD-ROMS: at the moment, few CR-ROMs provide the kind of specialized, detailed information about academic research that you need for your own research since most are intended for a general audience. However, more and more bibliographies are being put onto CD-ROM for use in academic libraries, so they can be a very valuable tool in searching for the information you need.
Magazines: magazines intended for a general audience (e.g. Time) are unlikely to be useful in providing the sort of information you need. Specialized magazines may be more useful (for example business magazines for management students) but usually magazines are not useful for your research except as a starting point by providing news or general information about new discoveries, policies, etc. that you can further research in more specialized sources.

CONDUCTING A LITERATURE REVIEW:
Conducting a literature review follows a basic set of steps.
  1. Identifying and make a list of keywords to guide search.
  2. Using keywords, locate primary and secondary sources that pertain to research topic.
  3. Evaluate sources for quality
  4. Abstracting
  5. Analyzing, organizing and reporting the literature.

1. IDENTIFYING AND MAKE LIST OF KEYWORDS TO GUIDE SEARCH:
            Most sources have alphabetical subject indexes to help researcher to locate information on topic. A list of keywords should guide literature search.

2. IDENTIFYING THE SOURCES:

A good way to start a review of related literature is with a narrow search of pertinent educational encyclopedias, handbooks and annual reviews found in libraries. These resources provide broad over views of issues in various subject area.                                                                                                                         A. searching for books on related topic in the library.                                              B. consulting computer database: the electronic catalog found in a library is an example of a database. A sort able, analyzable collection of units of information maintained on a computer. ERIC is the world’s largest database on education and is used by more than 500,000 people each year.                                           C. searching the internet and the World Wide Web: the internet links organizations and individuals all over the world. The World Wide Web is on the internet. To access the internet, need a computer with modem or cable line and a browser that connects to the web.

3. EVALUATING SOURCES: It is important to evaluate all literature sources by asking, what was the problem statement of the study? Where was the source published? When was the study conducted? And how was the study conducted?  

4. COMPARISON ACROSS STUDIES: The aim is to extract key points by comparing and contrasting ACROSS studies, instead of reading one paper after another.
Key points for a review may concern areas of similarities and/or differences in:
  • Research aim(s) or hypotheses
  • Research design and sampling
  • Instruments and procedures used
  • How data were analyzed
  • Results or findings
  • Interpretations

5. ABSTRACTING:    Abstracting involves creating summaries by locating, reviewing, summarizing and classifying the references. The main advantage of beginning with the latest reference on topic is that the most recent studies are likely to have profited from previous research. References in recent studies often contain references to previous studies which researcher has not yet identified. For each source work, list the complete bibliographic record; including author’s name, date of publication, title, journal name or book title, volume number ,issue number, page numbers and library call number. Briefly list main ideas. Put quotations marks around quotes taken from the source, and include page numbers. Keep all references in the format required for research report or dissertation.

6. ANALYZING, ORGANIZING AND REPORTING THE RESEARCH: The final step is actually writing review. Writing strategies at this point include using appropriate style manual formats and developing headings for the written literature review. Researcher need to consider the extent or length of the review for different types of research report. For journal articles, dissertations and theses, a thematic literature review summaries the literature by themes.       Researcher conclude a literature review by summarizing major themes and presenting reasons lead to a rationale for a study that builds naturally into the purpose statement and research questions or hypotheses.

How does a literature review differ from other assignments?

The review, like other forms of expository writing, has an introduction, body and conclusion, well-formed paragraphs, and a logical structure. However, in other kinds of expository writing, you use relevant literature to support the discussion of your thesis; in a literature review, the literature itself is the subject of discussion.

 But how is a literature review different from an academic research paper?

The main focus of an academic research paper is to develop a new argument, and a research paper will contain a literature review as one of its parts. In a research paper, you use the literature as a foundation and as support for a new insight that you contribute. The focus of a literature review, however, is to summarize and synthesize the arguments and ideas of others without adding new contributions.
 A literature review is the effective evaluation of selected documents on a research topic. A review may form an essential part of the research process or may constitute a research project in itself. In the context of a research paper or thesis the literature review is a critical synthesis of previous research. The evaluation of the literature leads logically to the research question.
1. A good literature review is a synthesis of available research.                               2. A good literature review has a critical evaluation.                                               3. A good literature review has appropriate breadth and depth.
4. A good literature review has clarity and conciseness.
5. A good literature review uses rigorous and consistent methods



BIBLIOGRAPHY
1. A.I.O.U, Educational Research, course code 837
2. Creswell W. John, Educational Research, third edition, Merrill prentice hall
3. Gay L.R, Educational Research, ninth edition,
4. Kumar Ranjit, Research Methodology, second edition, Dorling Kindersley India pvt ltd


9. http://explorations.sva.psu.edu/lapland/LitRev/litrev.htm