__________ is a way to obtain a research sample that is representative of the community

A researcher uses a device to press two closely-spaced pins onto various places on participants' bodies. Each time, the research asks the participant to say whether they feel two distinct points or only one

The researcher is testing the _____________ of the skin on the different body parts. A) gate threshold B) flexibility C) acuity D) nociception

Which of the following is a valid concern with regard to treating boys and girls differently during their childhoods?

a. Adults stressing independence may be less nurturing of girls than of boys, since they feel that girls naturally have better problem-solving abilities than boys b. Adults may grow to love children more or less based on their gender-consistent behaviors. c. Adults may grow to have different expectations about the abilities of boys and girls, and thus treat them in ways that either encourage or discourage certain skills. d. Adults may force more encouragement and instruction in math and science on girls, since they believe that girls are naturally less capable in those subjects.