Another researcher attempted to shorten the NCAA test

shown above and reduced the number of items to only 20. The mean on this
revision was 10 with an SD of 3. Find its KR21 reliability.

What will be an ideal response?


KR21 = .468

Psychology

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Based on the different components of dynamic systems theory, you should not expect a child to be able walk on their own, unsupported, until they reach the age of ____ months

a. 6–9 b. 9–12 c. 12–15 d. 15–18

Psychology

Soon-Lee knows that her socks are smaller than her mother's

socks and that her mother's socks are smaller than her father's socks, so that means her own socks are smaller than her father's socks. This shows that Soon-Lee understands: A) transitive inference. B) hierarchical classifications. C) combinativity. D) all of the above

Psychology

Evolutionary theorists believe that biology is not destiny, that our genes do not dictate our behavior

Indicate whether the statement is true or false

Psychology

When participants in an experiment were asked to imagine a letter and mentally move clockwise around the letter’s corners, ______.

a. they could respond more accurately by pointing than by responding verbally b. only about half of the participants could complete the task at all c. they could respond more quickly in verbal form than by pointing d. most could not complete the task, but those who did preferred to point

Psychology