Heritability is a statistical estimate of the proportion of the total variance in some trait that is attributable to genetic differences among individuals within a group

There are a number of studies on the amount of time spent watching television

The most extreme case was a study that reported that 25% of 6th and 10th graders watched _____ hours per day on school days and _____ hours on Saturday. (a) 2, 4 (b) 2, 5 (c) 2, 7 (d) 5 1/2, 8 1/2

Which of the following dimensions are especially important to the therapeutic relationships?

a. the emotional bonds that develop between the therapist and client b. the shared understanding of the task at hand c. neither a nor b d. both a and b