As long as the psychiatric nurse remains very quiet, she can move Jacob's arms and legs and shift his body position. Once he has been moved, he will remain so until someone moves him again. The unusual stupor state is sometimes observed in schizophrenia and is called

A recent investigation of potential sampling bias in psychological research indicated that approximately___ of the samples in published studies came from the United States

a. 10% b. 33% c. 66% d. 90%

When we feel admired and complimented, we tend to return these feelings and behaviors. What is this called?

A. passion B. romantic love C. reciprocity D. intimacy

Susan and her brother Stephen are very competitive with one another. Susan always beats Stephen at scramble because she knows more words than he does. This difference is an example of which of the following types of intelligences?

a. fluid intelligence b. crystallized intelligence c. practical intelligence d. creative intelligence

The vocabulary spurt occurs at ______ months of age.

A. 12-24 B. 16-24 C. 24-36 D. 30-36