A variable that uses discrete numbers, usually 0 and 1, to represent different groups is called a(n) _______________ variable

According to the article A Family Affair about working mothers, Bronfenbrenner's third proposition can also be called:

(a) teaching (b) practice (c) involvement of others (d) involvement of other settings

When people are asked to rate their happiness,

a. the vast majority indicate that they are unhappy. b. about half the respondents indicate that they are happy. c. a small minority place themselves below the neutral point on the scale. d. only those who are relatively healthy consider themselves happy.