If a psychologist is concerned that when people take a test of knowledge—like a vocabulary test—for the second time that their performance is likely to be different because of having taken the test once, the psychologist is assessing __________

For most adolescents, peer pressure tends to have positive influences—leading to better grades and peer relationships

Indicate whether the statement is true or false

As a proportion of the total population of the United States, by 2050 we should expect that there will be _____ older adults and of the older adults, ______ will be white

a. more; more b. more; less c. less; more d. less; less