In the United States, cohabitation has

a. increased threefold in the past 30 years.
b. decreased threefold in the past 30 years.
c. increased tenfold in the past 30 years

An infant scores high on the Bayley scales at 10:00 am in the morning, after sleeping well the night before. How well will the infant score just before a nap?

a. It would be impossible to predict; infant performance can vary. b. The infant will score worse because he will be tired. c. The infant will score the same because the test is an accurate, stable measure of cognition. d. The infant will score better because he will be more alert.

The "tip-of-the-tongue" phenomenon, in which you know for sure that you know something but you can't remember it at the moment, is a good example of

A) the inability to retrieve information from long-term memory. B) the inability to move information from short-term store to long-term store. C) difficulties with the executive processor. D) difficulties with encoding information into long-term memory.