PSY-2150 Study Guide - Quiz Guide: Latin Square, Confounding

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

Document Summary

All-possible-orders design (complete counterbalancing) - conditions of an independent variable are arranged in every possible sequence, and an equal number of participants are assigned to each sequence. Between-subjects design - different participants are assigned to each of the conditions in the experiment. Block randomization - we conduct a single round of all the conditions, then another round, then another, for as many rounds as needed to complete the experiment. Within each round, the order of conditions is randomly determined. Block-randomization design - every participant is exposed to multiple blocks of trials, with each block for each participant containing a newly randomized order of all the conditions. Carryover effects - occur when participants" responses in one condition are uniquely influenced by the particular condition or conditions that preceded it. Confounding variable - a factor that covaries with the independent variable in such a way that we can no longer determine which one has caused the changes in the dependent variable.