Question

State whether each of the following is an example of a between-subjects, mixed, or within-subjects two-way ANOVA design.

(a) A psychologist administers a small, medium, or large dose of a drug to a sample of mice (Factor A: drug dose) and measures reward-seeking behavior across three experimental trials (Factor B: trials).

between-subjects design

or

mixed design

or

within-subjects design

(b) An industrial organizational psychologist measures the GPA among men and women graduate students (Factor A: gender) with low, medium, or high leadership potential (Factor B: leadership potential).

between-subjects design

or

mixed design   

or

within-subjects design

(c) A behavioral psychologist asks the same group of participants to rate the effectiveness of each of three marketing commercials (Factor A: commercials) for each of two products (Factor B: products).

between-subjects design

or

mixed design    

or

within-subjects design

Answer 1

Ans:

a)Between subjects design

b)Mixed design

c)Within-Subjects design,as same group of participants is used to rate.

The fundamental difference is that in a mixed ANOVA, the subjects that undergo each condition (e.g., a control and treatment) are different, whereas in a two-way repeated measures ANOVA, the subjects undergo both conditions (e.g., they undergo the control and the treatment).