PSYC-2102 Chapter Notes -Repeated Measures Design, Internal Validity, Confounding

• School: University of Winnipeg
• Department: PSYCHOLOGY
• Course: PSYC-2102
• Professor: Michelle Crease Lark

Document Summary

Describe, compare, and contrast the defining characteristics of a between-subjects design and a within-subjects design. Explain the general advantages and disadvantages of between-subjects designs compared to within-subjects designs. Explain how individual differences and confounding from environmental variables can threaten the internal validity of a between-subjects design. Identify three primary techniques for limiting confounding by individual differences in between- subjects experiments. a. Be able to explain how each one works. Explain how variance within treatments can influence the interpretation of research results. Identify the options for reducing/controlling the variance within treatment conditions and explain how each option works. Describe how differential attrition and communication b/w participants can threaten the internal validity of between-subjects designs a. Identify these problems when they appear in a research study. Describe how between-subjects designs are used to compare means and proportions for 2+ groups a. b. Identify the stats techniques appropriate for each application. Figures and tables from research methods for the behavioral sciences.