According to psychologists, which of the following is one of the "4 Ds" of determining whether something is a mental disorder?

Which of the following describes the integrity versus despair stage of development according to Erikson?

a. When people in late adulthood look back and evaluate what they have done with their lives. b. When children first begin to explore their environment. c. When adolescents explore their identities and what they want to become in life. d. When early adults face the task of developing intimate relationships with others.

The estimated population variance is defined as the sum of the _____

a. squared differences of each score from the mean of a distribution divided by the sample size b. differences of each score from the mean of a distribution divided by the sample size c. squared differences of each score from the mean of a distribution divided by the sample size minus one d. differences of each score from the mean of a distribution divided by the sample size minus one