Dr.Sanders was interested in investigating the effects of stress on memory.He exposed participants to public speaking stress and room temperature stress and gave them a memory measure immediately after exposure to the two stressors.Dr.Sanders also gave participants the memory measure at baseline, when they first entered the research laboratory.Dr.Sanders hypothesized that participants' memories would be most affected by the two stressors compared to the baseline condition.What statistical test should Dr.Sanders use to test her hypothesis?
A) between-groups ANOVA
B) independent samples t test
C) within-groups ANOVA
D) dependent samples t test

Question

Quizplus · Accepted Answer

A within-groups ANOVA, also known as a repeated-measures ANOVA, would be the most appropriate statistical test for analyzing the effects of stress on memory. This is because the same participants are being measured across three different conditions (baseline, public speaking stress, and room temperature stress), making it a within-subjects design. The within-groups ANOVA can determine if there is a significant difference in memory scores across the three conditions.

DrSanders Was Interested in Investigating the Effects of Stress on Memory.He