A researcher wished to compare the effect of the different rates of stepping on volunteers' heart rates in a step-aerobics workout.A collection of thirty adult volunteers,fifteen women and fifteen men,were selected from a local gym.The men were randomly divided into three groups of five subjects each.Each group did a standard step-aerobics workout,with Group 1 at a low rate of stepping,Group 2 at a medium rate of stepping,and Group 3 at a rapid rate.The women were also randomly divided into three groups of five subjects each.As with the men,each group did a standard step-aerobics workout,with Group 1 at a low rate of stepping,Group 2 at a medium rate of stepping,and Group 3 at a rapid rate.The mean heart rate at the end of the workout for all the subjects was determined in beats per minute. A partial ANOVA table for these data is given below. What are the factors in this experiment?
A)Rate of stepping and heart rate
B)Rate of stepping and gender
C)Heart rate and gender
D)Gym membership and gender

Question

A researcher wished to compare the effect of the different rates of stepping on volunteers' heart rates in a step-aerobics workout.A collection of thirty adult volunteers,fifteen women and fifteen men,were selected from a local gym.The men were randomly divided into three groups of five subjects each.Each group did a standard step-aerobics workout,with Group 1 at a low rate of stepping,Group 2 at a medium rate of stepping,and Group 3 at a rapid rate.The women were also randomly divided into three groups of five subjects each.As with the men,each group did a standard step-aerobics workout,with Group 1 at a low rate of stepping,Group 2 at a medium rate of stepping,and Group 3 at a rapid rate.The mean heart rate at the end of the workout for all the subjects was determined in beats per minute. A partial ANOVA table for these data is given below.  What are the factors in this experiment?
A)Rate of stepping and heart rate 
B)Rate of stepping and gender 
C)Heart rate and gender 
D)Gym membership and gender

Quizplus · Accepted Answer

The factors in this experiment are the rate of stepping and gender. The study was designed to compare the effect of different rates of stepping on heart rates, with men and women each randomly assigned to one of three groups based on the rate of stepping. The gender factor is included in the design to control for potential gender differences in heart rate response to exercise. Gym membership and heart rate are not factors in this experiment.

A Researcher Wished to Compare the Effect of the Different