In the same study by Ehrenfreund and Badia (1962), the two levels of the variable_________, were combined factorially with two levels of another variable_________, to produce a __________
A) Deprivation-Incentive-2 X 3 factorial design
B) Deprivation-Incentive-2 X 4 factorial design
C) Speed-Weight-Experimental design
D) Deprivation-Incentive-2 X 2 factorial design
D
Psychology