Nikki is in the second grade and is given the following problem to solve: John has 15 apples, Amy has 10 apples, and Chris has 5 apples. How many apples do John and Chris have altogether? Nikki adds the apples for all three people, using the irrelevant information about Amy's number of apples. Thus, according to Davidson, Nikki is displaying a lack of

After a day when all of his students complained about the way

he graded their papers, his boss doubled his workload, and he got a speeding ticket on his way home, Nick yelled at his wife for leaving her toothbrush on the bathroom counter. This is an example of A) displacement. B) projection. C) regression. D) sublimation.

In the process known as ________, sensory receptors become less sensitive to repeated presentations of the same stimulus

a) sensation b) sensory fatigue c) sensory adaptation d) discrimination