In a correlated-groups design, if n = 20, then df =

a. 20.
b. 19.
c. 21.
d. 40.


b

Psychology

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According to information processing explanations of cognitive development, one of the most important reasons for advances in mental abilities during adolescence is the growth of __________.

A. myelination in the brain B. neural connectivity in the prefrontal cortex C. memory capacity D. metacognition

Psychology

Alice rates herself as above average regarding her ability to do well in school. Her tendency to maintain these positive feelings is called

a. an optimistic explanatory style. c. a self-improvement motive. b. an external explanatory style. d. a self-enhancement motive.

Psychology

Delirium can be caused by a number of factors. The least likely of these is ____

a. ?poisoning b. ?a side effect of medication c. ?severe anxiety d. ?an infection that has reached the bloodstream

Psychology

Studies with young adults have found that wisdom is related to having ______.

A. high intelligence B. a greater investment in hedonistic pursuits C. a solid and consistent ego D. a broad skill set

Psychology