What refers to the degree of assistance provided to the learner in the zone of proximal development, gradually decreasing as the learner's skills develop?

Which of the following is part of the ethical guidelines for animal research?

a) Animals must be cared for by individuals trained in their care. b) Animal discomfort should not interfere with research. c) Only animals, not people, may be caused discomfort for research. d) Research animals must be assigned a human advocate.

Approximately what percent of children from divorced families develop serious adjustment problems?

A) 5 to 10 B) 20 to 25 C) 30 to 35 D) 40 to 45