Early adolescent changes rarely affect a boy's self­esteem

What does the research show about children working individually rather than in pairs or

groups which validates Vygotsky's theories? a. It is easier for them to come to a solution. b. They come up with less complex ideas than children who work together. c. They are less aggressive when problem solving. d. They rely on private speech more.

Research on hostility has shown that

a. hostile people recover more quickly from stressful episodes b. hostile people are especially likely to benefit from social support c. hostility is a risk factor for heart disease d. hostility is a psychological, rather than a physiological, phenomenon