Which of the following is an experimental design?
A) single-group, posttest-only design
B) single-group, pretest-posttest design
C) ex post facto design
D) None of the above
Question 2
Re: It is necessary to design and carry out experiments so that the experimental conditions
Question 3
In an ANOVA, we try to
A) maximize experimental variance and within-groups variance.
B) minimize error variance and control extraneous variance.
C) minimize both error variance and experimental variance.
D) control extraneous variance and maximize error variance.
