An industrial psychologist is investigating the effects of work environment on employee attitudes. A group of 20 recently hired sales trainees were randomly assigned to one of four different "home rooms" - five trainees per room. Each room is identical except for wall color. The four colors used were light green, light blue, gray and red. The psychologist wants to know whether room color has an effect on attitude, and, if so, wants to compare the mean attitudes of the trainees assigned to the four room colors. At the end of the training program, the attitude of each trainee was measured on a 60-pt. scale (the lower the score, the poorer the attitude). The data was subjected to a one-way analysis of variance. At α = 0.05, what would be the best interpretation?
ONE-WAY ANOVA FOR ATTITUDE BY COLOR
◦ At α = 0.05, red is the best color
◦ At α = 0.05, it can be said that color doesn't matter
◦ At α = 0.05, it can be said that at least one color has a different mean
◦ At α = 0.05, light green has a higher mean than gray
A Biologist at Work
Adaptations to the Environment
Effect of pH on drug absorption: (a) a weak acid such as aspirin (ASA) is in a nonionized form in an
Effects of Elevation on Heart Rate and Ventilation
Multisystem effects of multiple sclerosis.
Using a step stool to work on the spine