For complete counterbalancing:

a. order and time effects must be eliminated.
b. each condition must occur equally often.
c. each condition must precede and follow all other conditions an equal number of times.
d. each condition must occur equally often and precede and follow all other conditions an equal number of times.


D

Psychology

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The environmental hypothesis on IQ is supported by data showing that

a. there are consistent and stable racial group differences. b. embryonic stem-cell implants can boost IQ performance. c. children with superior genotypes earn high IQ scores. d. African-American children adopted by middle-class Caucasians show strong gains in IQ.

Psychology

The life-span range by nation is _____ years

40 75 43 80

Psychology

Central tendency is one of the main types of descriptive statistics.

Answer the following statement true (T) or false (F)

Psychology

IDR stands for Incourt Directed Resolution.

Answer the following statement true (T) or false (F)

Psychology