A researcher measures anxiety levels among participants in the presence and absence of a fearful stimulus.If the same participants are observed in each group,then what type of statistical design is appropriate for this study?
A) a related-samples t test
B) a one-way between-subjects ANOVA
C) a one-way within-subjects ANOVA
D) a related-samples t test and a one-way within-subjects ANOVA

Question

Quizplus · Accepted Answer

Since the same participants are observed in each condition (presence and absence of a fearful stimulus), both a related-samples t-test (which compares the means of two related groups) and a one-way within-subjects ANOVA (which compares means across three or more related groups) can be appropriate, depending on the specific research question and design.

A Researcher Measures Anxiety Levels Among Participants in the Presence