A campus researcher wanted to investigate the factors that affect visitor travel time in a complex, multilevel building on campus.Specifically, he wanted to determine whether different building signs (building maps versus wall signage)affect the total amount of time visitors require to reach their destination and whether that time depends on whether the starting location is inside or outside the building.Three subjects were assigned to each of the combinations of signs and starting locations, and travel time in seconds from beginning to destination was recorded.How should the data be analyzed?
A)Completely randomized design
B)Randomized block design
C)2 x 2 factorial design
D)Levene's test

Question

A campus researcher wanted to investigate the factors that affect visitor travel time in a complex, multilevel building on campus.Specifically, he wanted to determine whether different building signs (building maps versus wall signage)affect the total amount of time visitors require to reach their destination and whether that time depends on whether the starting location is inside or outside the building.Three subjects were assigned to each of the combinations of signs and starting locations, and travel time in seconds from beginning to destination was recorded.How should the data be analyzed? 
A)Completely randomized design 
B)Randomized block design 
C)2 x 2 factorial design 
D)Levene's test

Quizplus · Accepted Answer

A 2 x 2 factorial design is appropriate for this study because there are two independent variables (building sign type and starting location) and each variable has two levels. This design allows for the examination of the main effects of each independent variable as well as any interaction effects between them. The use of three subjects per combination also satisfies the requirement for replication, which is necessary for a factorial design. A 2 x 2 factorial design is appropriate as the researcher is interested in testing the effects of two factors (building signs and starting location) on travel time. By assigning three subjects to each combination of the two factors, the researcher can analyze the main effects of each factor and their interaction effect. This design also allows for the control of extraneous variables that may affect travel time.

A Campus Researcher Wanted to Investigate the Factors That Affect