A researcher wants to investigate the effectiveness of three versions of a computer-assisted instructional (CAI) program in math on the achievement of elementary school students in math.The researcher wants to know if the effectiveness of the program would depend on the math aptitude (classified as above and below average) and the gender of the students.What experimental design would you recommend for this study?
A) 1 $\times$ 2 $\times$ 3 factorial design
B) 3$\times$ 2 $\times$ 2 factorial design
C) Solomon three-group design
D) Randomized subjects, pretest-posttest, control group design
E) None of these is true.

Question

A researcher wants to investigate the effectiveness of three versions of a computer-assisted instructional (CAI) program in math on the achievement of elementary school students in math.The researcher wants to know if the effectiveness of the program would depend on the math aptitude (classified as above and below average) and the gender of the students.What experimental design would you recommend for this study?
A) 1 $\times$ 2 $\times$  3 factorial design
B) 3$\times$  2 $\times$  2 factorial design
C) Solomon three-group design
D) Randomized subjects, pretest-posttest, control group design
E) None of these is true.

Quizplus · Accepted Answer

The best design for this study would be a 3x2x2 factorial design. The independent variables in this design are the three versions of the CAI program in math, math aptitude (above and below average), and gender (male and female). The dependent variable is the achievement of elementary school students in math. This design allows the researcher to examine main effects for each independent variable, as well as potential interactions between the variables. The 3x2x2 design includes three levels of the CAI program, two levels of math aptitude, and two levels of gender, resulting in twelve total conditions. This design is appropriate because it allows the researcher to investigate the effect of each independent variable and their interactions.

A Researcher Wants to Investigate the Effectiveness of Three Versions ×\times×

A Researcher Wants to Investigate the Effectiveness of Three Versions $\times$