According to a study by Perry-Jenkins on working-class, dual-income couples, about what percent of these families include an adult who works during "off-shift" hours (not in the 8-to-5 traditional shift)?

Compared to early childhood, play during middle childhood is

A) more logical and less fantasy oriented. B) more likely to be played in large groups. C) relies on more unstructured activities. D) more likely to involve both boys and girls.

Conscious is to suppression as unconscious is to

a. redintegration. b. repression. c. regression. d. relearning.