In an experiment on the effects of level of motivation on the performance of typists, the researcher randomly assigned one third of her subjects to each of three levels of motivation (and then induced different levels of motivation in the three groups)
She measured the average words typed per minute by each group, and found that performance was highest under medium motivation, average under low motivation, and worst under high motivation. What was the independent variable in this experiment?
a. motivation
b. typing speed
c. variation in typing speed
d. manipulation of typing speed
a
You might also like to view...
The disorder marked by binge eating, inappropriate methods to prevent weight gain, and self-evaluation greatly influenced by body shape and weight is
a. overeating disorder. b. obesity. c. bulimia nervosa. d. binge nervosa.
Pyramidal cells in the cerebral cortex are examples of a. unipolar neurons
b. bipolar neurons. c. multipolar neurons. d. Purkinje cells.
Causes of death among American Indians and Native Alaskans have typically most often involved
a. communicable diseases b. degenerative diseases c. increased average life expectancy d. rejection of the view that life and death are linked in a circular fashion e. low risk of sudden infant death syndrome
Hippocrates identified an imbalance in _____ as the source of abnormality.
A. the ego B. spiritual harmony C. bodily fluids D. the unconscious