bio 199 lecture 3 (literature review)

28
THE LITERATURE REVIEW Evaluating Others’ and Developing Your Own

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Page 1: Bio 199 Lecture 3 (Literature Review)

THE LITERATURE REVIEW

Evaluating Others’ and Developing Your Own

Page 2: Bio 199 Lecture 3 (Literature Review)

RELATED LITERATURE

• RELATED LITERATURE: Composed of discussions of facts and principles to which the present study is related

• RELATED STUDIES: studies, inquiries or investigations conducted to which the present proposed study is related or has some bearing or similarity

• usually unpublished materials

• manuscripts; theses; dissertations

Page 3: Bio 199 Lecture 3 (Literature Review)

SEARCHING FOR THEORIES

We usually survey the literature to arrive at theories.

Page 4: Bio 199 Lecture 3 (Literature Review)

THEORY

• DEFINITION

• set of interrelated concepts, definitions and propositions that presents a systematic view of phenomena by specifying relations among variables (Kerlinger, 1973)

• purpose: explaining and predicting the phenomena

Page 5: Bio 199 Lecture 3 (Literature Review)

FUNCTIONS OF THEORY

• It identifies the start for the research problem by presenting the gaps, weak points, and inconsistencies in the previous researches. This provides the study with a conceptual framework justifying the need for investigations.

• It puts together all the constructs or concepts that are related with the researcher’s topic. The theory then leads you into the specific questions to ask in your own investigation

• It presents the relationships among variables that have been investigated. This process enables you to view your topic on hand against the findings earlier bared.

Page 6: Bio 199 Lecture 3 (Literature Review)

OTHER IMPORTANCE, PURPOSES AND

FUNCTIONS OF RELATED LITERATURE

“WHAT IS IT FOR ME ME ANYWAY?”

Page 7: Bio 199 Lecture 3 (Literature Review)

• It gives the researcher a feeling of confidence since by means of the review of related literature he will have on hand all constructs related to the study.

• It provides information about the research methods used, the population and sampling considered, the instruments used in gathering data, and the statistical technique and computation employed in previous research.

• It provides findings and conclusions of past investigations which may relate to your own findings and conclusions.

Page 8: Bio 199 Lecture 3 (Literature Review)

• The surveyed materials must be as recent as possible

• Materials reviewed must be objective and unbiased

• Materials surveyed must be relevant to the study

• Surveyed materials must have been based upon genuinely original and true facts or data to make them valid and reliable

• Reviewed materials must not be too few or too many

CHARACTERISTICS OF RELATED LITERATURE

MATERIALS

Page 9: Bio 199 Lecture 3 (Literature Review)

HOW TO CONDUCT THE REVIEW OF RELATED

LITERATURE“WHERE DO I GO FROM HERE?”

Page 10: Bio 199 Lecture 3 (Literature Review)

WHERE TO SEARCH

• personal or school library (magazines, journals, books, etc)

• attend seminars, scientific meetings (under your topic of course)...take down notes

• do a computer-aided search through databases

• example: www.scirus.com; pubmed; toxnet, etc

Page 11: Bio 199 Lecture 3 (Literature Review)

HELP, THEY ARE ALL FOR SALE!

• You can actually ask for reprints:

• via postcards

• via request letters

• via emails

Page 12: Bio 199 Lecture 3 (Literature Review)

AFTER ALL THESE PHOTOX WHAT’S

NEXT?“ITS TIME TO ORGANIZE YOUR TREASURES!”

Page 13: Bio 199 Lecture 3 (Literature Review)

ORGANIZING YOUR NOTES

• General Information

• Methods in Other Studies

• Support for Objectives

• Results to Compare with My Results

• Pros and Cons of Controversy

• Others...it may be of use (malay mo!)

Page 14: Bio 199 Lecture 3 (Literature Review)

ALSO...

• write all bibliographic information, i.e., author(s), complete title, publisher, date and place of publication, and so on

• write what others have said on the subject plus your own impressions and comments

• Start paraphrasing

Page 15: Bio 199 Lecture 3 (Literature Review)

GUIDE QUESTIONS WHEN YOU REVIEW RESEARCH

LITERATURE

• Do the accumulated literature indicate gaps and inconsistencies which you hope to fill?

• Are the variables adequately described?

• What data gathering instruments have been used? Are they reliable and valid tools?

• Are the target and sampling populations presented?

• Were the hypotheses tested and correctly interpreted?

• Are the results logical? Are the conclusions and recommendations data-based?

Page 16: Bio 199 Lecture 3 (Literature Review)

IT’S TIME TO WRITE...AVOIDING PLAGIARISM!

Page 17: Bio 199 Lecture 3 (Literature Review)

• Use headings arranged in logical order to indicate main points

• Avoid too long introduction to your main topic.

• Include information that are directly related and relevant to your topic.

• A maximum of half-page (double-space) must constitute one paragraph

• Do not copy in toto the information from your source. No more than 10% of the entire paper is allowed for direct quotation

Page 18: Bio 199 Lecture 3 (Literature Review)

• Give due credit to the real source of your data. Cite the authors at the end of the sentence.

• Paraphrase using your own words and style the data gathered.

• Summarize important points from your sources and relate them to your topic.

• Reinforce your data with selected figures or statistics from your course.

Page 19: Bio 199 Lecture 3 (Literature Review)

A common problem...turning your

list of ideas into a BORING review

Page 20: Bio 199 Lecture 3 (Literature Review)

HOW TO AVOID IT

• Make subheads (not too many), transitional phrases and unifying ideas to make information flow smoothly

Page 21: Bio 199 Lecture 3 (Literature Review)

HOW TO AVOID IT

• Spice your writing with a variety. Keep your paper alive!

• Vary the way sentence and paragraph begins:

• Author A found out

• Author B found out

• Replace found out with:

• demonstrates; presented evidence for; supported; observed; reported; examined; concluded

• Early in the 1980’s, author A

• According to Author A,

Page 22: Bio 199 Lecture 3 (Literature Review)

READY TO DO YOUR RRL?

Page 23: Bio 199 Lecture 3 (Literature Review)

But before that, let us learn to critique or

evaluate a research study

Page 24: Bio 199 Lecture 3 (Literature Review)

GUIDE QUESTIONS

• Why did the Researchers do this particular study?

• Who/What was/were studied?

• How was the study done?

• What did the researchers find?

• What were the limitations of the study?

• What are the implications of the study?

Page 25: Bio 199 Lecture 3 (Literature Review)

ACTIVITY 2

• For December 3, 2009

• Materials: photocopy of guide questions and uploaded (FB) journal article

• Task: To be guided by the questions and critique the research study

• One page, single space, Arial, 12

• Submit on December 7, 2009

Page 26: Bio 199 Lecture 3 (Literature Review)

FOR ACTIVITY 3...

Page 27: Bio 199 Lecture 3 (Literature Review)

BRING THE FOLLOWING

• December 7, 2009

• Choose 5 abstracts from journal articles related to your desired topic/interest

• Inclusive Dates: 2000 to present

Page 28: Bio 199 Lecture 3 (Literature Review)

thank you and see you next meeting!