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Full-Text Articles in Psychology
Does Coding Method Matter? An Examination Of Propensity Score Methods When The Treatment Group Is Larger Than The Comparison Group, Beth A. Perkins
Does Coding Method Matter? An Examination Of Propensity Score Methods When The Treatment Group Is Larger Than The Comparison Group, Beth A. Perkins
Dissertations, 2020-current
In educational contexts, students often self-select into specific interventions (e.g., courses, majors, extracurricular programming). When students self-select into an intervention, systematic group differences may impact the validity of inferences made regarding the effect of the intervention. Propensity score methods are commonly used to reduce selection bias in estimates of treatment effects. In educational contexts, often a larger number of students receive a treatment than not. However, recommendations regarding the application of propensity score methods when the treatment group is larger than the comparison group have not been empirically examined. The current study examined the recommendation to recode the treatment and …
Getting Caught-Up In The Process: Does It Really Matter?, Nikole Gregg
Getting Caught-Up In The Process: Does It Really Matter?, Nikole Gregg
Dissertations, 2020-current
Likert items are the most commonly used item-type for measuring attitudes and beliefs. However, responses from Likert items are often plagued with construct-irrelevant variance due to response style behavior. In other words, variability from Likert-item scores can be parsed into: 1) variance pertinent to the construct or trait of interest, and 2) variance irrelevant to the construct or trait of interest. Multidimensional Item Response Theory (MIRT) is an increasingly common modeling approach to parse out information regarding the response style traits and the trait of interest. These MIRT approaches are categorized into threshold-based approaches and response process approaches. An increasingly …