PPT Slide
Statistical Analysis of 3 x 3 Factorial Experiment: Case B
Factor A: Study Method Factor B : Incentive Level
A1 = read only B1 = low incentive (20 cents)
A2 = read plus underline B2 = medium incentive (1 dollar)
A3 = read plus summarize B3 = high incentive (5 dollars)
Note: Both independent variables are manipulated between-groups
B2 8.30 11.40 14.40 11.37
B3 10.70 13.70 17.30 13.90