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Weicong Lyu; Peter M. Steiner – Society for Research on Educational Effectiveness, 2021
Doubly robust (DR) estimators that combine regression adjustments and inverse probability weighting (IPW) are widely used in causal inference with observational data because they are claimed to be consistent when either the outcome or the treatment selection model is correctly specified (Scharfstein et al., 1999). This property of "double…
Descriptors: Robustness (Statistics), Causal Models, Statistical Inference, Regression (Statistics)
van Hout, Hans – 1991
This study examined the problems of postgraduate research assistants in the Netherlands. The study was conducted as a result of Government plans to introduce a new educational system for obtraining a doctorate equivalent to a Ph.D.--the "assistants-in-training system" (aio system). On the basis of a literature study on the American and…
Descriptors: Causal Models, Foreign Countries, Graduate Study, Higher Education
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Johnson, David E. – Teaching of Psychology, 1996
Provides an exercise for introducing research methods to undergraduates. The students view a graph revealing that left-handed people are underrepresented in older age groups. Small group discussions attempt to explain this phenomenon. A follow-up class discussion focuses on the different approaches and methods available for interpreting the data.…
Descriptors: Causal Models, Critical Thinking, Data Interpretation, Factor Analysis