Psychology 2840F/G Chapter Notes - Chapter 10: Random Assignment, Latin Square, Demand Characteristics

• School: Western University
• Department: Psychology
• Course: Psychology 2840F/G
• Professor: gibson

Document Summary

Research methods textbook notes chapter 10 intro to simple experiments. Also if the experimenters assign one type of person to one condition and another type of person to the other (e. g. male, female) Allow researchers to test for covariance by detecting differences in the dependent variable. Establish temporal precedence because the independent variable comes rst in time. May be used when they want to evaluate whether a random assignment made the groups equal. Could be especially important when group sizes are on the small side. Within group designs: concurrent measure design. Participants are exposed to all the levels of an independent variable at roughly the same time, and a single attitudinal or behavioural preference is the dependent variable: repeated measure design. Participants are measured on a dependent variable more than once, after exposure to each level of the independent variable: advantages; Ensure the participants in the two groups will be equivalent.