A persistent difficulty in concentrating, remaining still, and working on a task are the key characteristics of
a. mania.
b. autism.
c. attention-deficit/hyperactivity disorder.
d. psychostimulant abuse.
e. obsessive-compulsive disorder.
Answer: c. attention-deficit/hyperactivity disorder.
Psychology
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According to Vygotsky, novices learn from mentors through a process called an apprenticeship in
career selection. learning. thinking. development.
Psychology
A controlled test of a hypothesis, in which the researcher manipulates one variable in order to discover its effect on another variable, is called a(n) _______
a. correlational study. b. experiment. c. survey. d. single-blind study.
Psychology