PSY-2150 Study Guide - Quiz Guide: Randomized Controlled Trial, Statistical Conclusion Validity, Pilot Experiment

• School: Vanderbilt University
• Department: Psychology (A&S)
• Course: PSY-2150
• Professor: Sandberg Elisabeth

Document Summary

Attrition (subject loss): occurs when participants fail to complete a study. Ceiling effect: occurs when scores on a dependent variable bunch up at the maximum score level. Complete (full) replication: includes all the conditions of the original study. Conceptual replication: examines the same question investigated in the original study, but operationalizes the constructs differently. Construct validity: concerns the issue of whether the constructs (the conceptual variables) that researchers claim to be studying are, in fact, the constructs that they are manipulating and measuring. Debriefing: a conversation with the participant that conveys additional information about the study. Demand characteristics: refer to the cues that influence participants" beliefs about the hypothesis being tested and the behaviors expected of them. Differential attrition: occurs when significantly different attrition rates or reasons for discontinuing exist, overall, across the various conditions. Direct (exact) replication: the researchers follow the procedures used in the original study as closely as possible.