Elements that share common features such as size, shape, or color are viewed as a set. This defines which Gestalt law of organization?

Which of the following is NOT a reason that older adolescents are more likely than younger adolescents to commit suicide?

A) Older adolescents are more likely to have a psychological disorder. B) Older adolescents have a greater number of risk factors for suicide. C) Older adolescents have more advanced cognitive skills so can make effective suicide plans. D) Older adolescents are more likely to have peers who help them with the suicide.

All of the following are ways that The National Health and Social Life Survey encouraged completion of the questionnaire, EXCEPT

A) identities of participants were kept confidential. B) incentives up to $100 were offered. C) a letter was sent to each household, then the interviewer visited one week later. D) the sexual aspect of the survey was originally concealed from the participants.