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Harvard Extension School, Spring 2012 SSCI S-100b Graduate Research Methods and Scholarly Writing in the Social Sciences: Government and History. Joe Bond Class 6 March 5, 2012. Literature Reviews Case Studies Discuss Readings: Mifue & Shaun 6 th In-Class Writing Assignment.
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Harvard Extension School, Spring 2012SSCI S-100b Graduate Research Methods and Scholarly Writing in the Social Sciences: Government and History Joe Bond Class 6 March 5, 2012
Literature Reviews • Case Studies • Discuss Readings: Mifue & Shaun • 6th In-Class Writing Assignment
Literature Review • Lit reviews are guided by one or more general questions • By the time you are finished with your review, you will have the answer to your question(s) • You will also emerge with one or more unanswered questions • These questions will [hopefully] serve as the focal point of your ALM thesis proposal [your final paper]
How many sources? It depends. Universe Discipline Y We know a lot Little is known Discipline Z We know less Discipline X
Begin with a dozen sources, if possible • Try not to cite everything under the sun related to your topic • Start broad and shoot for specificity as your review progresses • If little is known, branch out (e.g. interdisciplinary) • If the topic/question has been thoroughly investigated, go for more specificity • Try to stick with “scholarly” books and refereed journal articles • While internet sources are fine for ideas, try to cite a hardcopy or e-journal, if available (e.g. some online reports are also available in hardcopy; UN documents). • Do not cite an internet source that refers to someone else’s study; rather, cite the study.
A “Researchable” Topic • In the Extension School, just about anything is fair game as long as you can weave in a political and/or historical dimension broadly defined • Most ALM theses proposals start out overly ambitious • DO NOT CHOOSE A TOPIC BASED ON WHAT YOU THINK WILL MAXIMIZE YOUR CHANCES OF GETTING A PARTICULAR FACULTY MEMBER TO SERVE AS YOUR ADVISOR • If it doesn’t interest you, you will never finish
Should I bother? • A research topic should add to the pool of research knowledge available on the topic (build up on existing research) • Question to ask: • Does the study address a topic that has yet to be examined, extend the discussion by incorporating new elements, or replicate a study in new situations or with new participants? • Is the topic salient? Does it appeal to a broad audience? Is the topic timely? Is the topic non-trivial?
Purpose of a Literature Review • To share with the reader the results of other studies that are closely related to an area of interest • Relate your research to the larger ongoing dialogue in the literature, filling gaps and extending prior studies • Provide a framework for establishing the importance of your study with other findings SYNTHESIS IS KEY
What it is NOT • The literature review is not the place to analyze your research questions (those adopting an historical approach are susceptible to falling into this trap) • It should only review what has already been reported • By the time that you finish your literature review, you may find that your preliminary questions have already been addressed by others but additional, more interesting questions have been left unanswered
A Lit Review IS NOT an Annotated BibliographyThis is an annotated bibliography and yes, it is 204 pages long:http://www.teachingterror.com/bibliography/CTC_Bibliography_2004.pdf
# 1 • Identify key words useful in locating materials using Hollis, for example • Key words may help you identify a suitable topic of interest and will assist you in finding preliminary books in the library or e-journals
# 2 • Focus initially on refereed journals and books • Search databases typically reviewed by social science researchers include ERIC (http://www.eric.ed.gov/ERICWebPortal/Home.portal), the Social Science Citation Index, etc.
The Social Sciences Citation Index • Covers 1969 through the present • Available in most academic libraries • Covers 5700+ journals that represent virtually every discipline in the social sciences • Useful in locating studies that have referenced an important study • Allows the user to “trace” all studies since publication of a “key” study that contain the cited work. • Allows the user to develop a chronological list of references that document the historical evolution of an idea or a study
# 3 • Locate a dozen books, journal articles, reports, etc. related to your topic • Avoid shortcuts! Start now! Reading material on the web may be convenient but it is rarely adequate • Start with the most recent publications and work backwards
# 4 • Identify an initial group of books and articles that are central to your topic • Review abstracts and skim the articles or chapters (particularly the first and last sections/chapters) • Get a sense of whether the article or chapter will make a useful contribution to your understanding of the literature • Don’t reinvent the wheel! • Use the bibliographic information (i.e. references) contained in the articles and books to extend your search
Abstracting Studies A Good literature review summary might include the following: • Mention the problem being addressed. • State the central purpose of focus of the study. • State the underlying assumptions. • Briefly state information about the sample, population, or participants. • Review the key results. • Point out any technical or methodological flaws. • Be sure to jot down full citations even if you do not ultimately incorporate the piece into your review • Reading “Doing a Literature Review” article Questions?
What is a Case Study? • A definitional morass • Qualitative method, small-N (Yin, 1994) • Ethnographic, clinical, participant-observation, or otherwise “in the field” (Yin, 1994) • Characterized by process-tracing (George & Bennett, 2004) • Investigates the properties of a single case (Campbell & Stanley, 1963) • Investigates a single phenomenon, instance or example (the most common usage)
Definition • A case study is an intensive study of a single unit for the purpose of understanding a larger class of (similar) units (Gerring, 2004) • A unit connotes a spatially bounded phenomenon (e.g. a nation-state, revolution, political party, election, or person – observed at a single point in time or over some delimited period of time.
Nested Definitions • A population is comprised of a sample (studied cases), as well as unstudiedcases • A sample is comprised of several units, and each unit is observed at discrete points in time, comprising cases • A case is comprised of several relevant dimensions (variables), each of which is built upon an observation or observations
Case Study as a Dataset • Observations as cells • Variables as columns • Cases as rows • Units as either groups of cases or individual cases
Important! • All these aforementioned terms are definable only by reference to a particular proposition and a corresponding research design • A country may function as a case, a unit, a population or a case study • It all depends • In a typical cross-country time series regression analysis, units are countries, cases are country-years, and observations are collected for each case on a range of variables
Three Types of Case Studies • Type I Case Studies: look at variation in a single unit over time, thus preserving the primary unit of analysis • Spatial Variation: None (1 unit) • Temporal Variation: Yes • American Revolution (before, during, after)
Three Types of Case Studies, Continued • Type II Case Studies: break down the primary unit of analysis into subunits, which are the subjected to variation analysis synchronically (i.e. one point in time) • Spatial Variation: Within-unit • Temporal Variation: No • American Revolution (perspectives of the N. & S.)
Three Types of Case Studies, Continued • Type III Case Studies: break down the primary unit of analysis into subunits, which are the subjected to variation analysis synchronically & diachronically (i.e. over time) • Spatial Variation: Within-unit • Temporal Variation: Yes • American Revolution (perspectives of the S & N before, during and after)
Three Types of Case Studies, Continued • Type I, Type II, and Type III case studies are the three logically conceivable approaches to the study of a single unit where that unit is viewed as an instance of some broader phenomenon • Consequently, where one refers to the case study method, one is referring to three possible methods, each with a different menu of variational evidence
The N Question • N = number of cases • The number of cases employed by a case study may be small or large • Consequently, may be evaluated in a qualitative or quantitative fashion
Example: The French Revolution • N = 1 case (France) • Broaden the analysis to include a second revolution (e.g. American Revolution), N = 2 cases • Represents a gross distortion of what is really going on! • More correct to describe such a study as comprising two units, rather than two casesbecause a case study of a single event generally examines that event over time
Example: The French Revolution • France is observed before, during, and after the event to see what changed and what remained the same after the revolution • Creates multiple cases (N) out of a single unit (French Revolution) • N = 2, at the very least (e.g. before & after a revolution), in a case study of Type I • Spatial Variation: None (1 unit) • Temporal Variation: Yes
French Revolution as a Single Point in Time • No temporal variation – studied at a single point in time – the object of investigation – are there patterns of variation within that unit or a case study of Type II • Within-unit cases consists of all cases that lie at a lower level of analysis relative to the inference under investigation
Important! • If the primary unit of analysis is the nation-state (e.g. France), then within-unit cases might be constructed from provinces, localities, groups or individuals • Unit-of-analysis = French Revolution • Cases = sub-national entities, groups or individuals • The possibilities for within-unit analysis are, in principle, infinite
Relevance • Counterintuitive: Many Type II case studies have a larger N than cross-sectional time series analysis • Why? • Assume that your time series’ unit-of-analysis is comprised of country-revolution-years (how many are there?) • Assume that your Type II case study unit-of-analysis is the French Revolution and your cases represent individuals (a hundred or so)
Type III Case Studies • Type II case studies involve spatial variation (within-unit) but no temporal variation • Type III cases studies involve both spatial and temporal variation, thus the potential N increases accordingly • Type III cases studies are probably the most common genre of case study analysis
Summary • Case studies usually perform a double function; they are studies of the unit itself and they are studies of a broader class of units
Strengths of Case Studies • Case studies are more useful when inferences are descriptive rather than causal • When propositional depth is prized over breadth and boundedness • When (internal) case comparability is give precedence over (external) case representativeness • When the strategy of research is exploratory, rather than confirmatory • When the useful variance is available for only a single unit or smaller number of units
Group Exercise • Break into 3 groups • Come up with examples for each of the three case study types (i.e. I, II, and III) • For each Type, draw an illustration on the board representing temporal and spatial variation
Facilitation Articles • The Challenge of High and Rising Food Prices • The Future of American Power: Dominance and Decline in Perspective
In-Class Writing Exercise 6 • Third in-class writing exercise -- refer to 60 minutes video & handout Evidence of Injustice: • Identify where science failed justice with respect to the faulty evidence used to wrongly convict numerous people over the past three decades. As a student of social science, propose realistic safeguards (e.g. it should not involve something like a constitutional amendment) to prevent this kind of travesty of justice from happening again. Please use only the reverse side of this sheet for your response. • http://video.search.yahoo.com/video/play?p=%22Evidence+of+Injustice%22&ei=UTF-8&fr=fp-yie8&tnr=21&vid=0001333210215