If neither Variable A nor Variable B has a main effect you can have
a. no interaction
b. a ceiling effect interaction
c. an antagonistic interaction
d. a synergistic interaction
Question 2
Dr. Caster decides to perform an experiment investigating the effects of caffeine and sugar on motor skill performance. He randomly assigns his subjects to one of four groups: high caffeine/high sugar, high caffeine/no sugar, no caffeine/high sugar, no caffeine/no sugar. People in each group are given a soft drink containing the appropriate levels of sugar and caffeine, and then tested on a mirror tracing task. Dr. Caster finds that the people in two of the groups (the high caffeine/high sugar and the no caffeine/no sugar) perform at about the same high level, while the other two groups (the no caffeine/high sugar and high caffeine/no sugar) perform at about the same poor level. Dr. Caster's results show
a. a main effect of caffeine
b. a main effect of sugar
c. a synergistic interaction
d. an antagonistic interaction
Interaction web of factors that might influence locust population size.
The colors of peppers are determined by the interaction of several genes
Why leaves are green: interaction of light with chloroplasts.
Alzheimer’s Drugs Work by Intensifying the Effect of Acetylcholine at the Receptor
Alzheimer’s Drugs Work by Intensifying the Effect of Acetylcholine at the Receptor
A typical variable cam timing control valve. The solenoid is controlled by the engine computer and ...