In general, it would be safest to say that a test

a. that is not reliable is also not valid.
b. can be valid without also being reliable.
c. cannot be reliable without also being valid.
d. cannot be both reliable and valid.


Answer: a. that is not reliable is also not valid.

Psychology

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Briefly summarize the advice provided in the text on how to develop sound study habits and get more out of lectures

What will be an ideal response?

Psychology

A random sample of n = 16 scores is obtained from a population with ? = 12 . If the sample mean is 6 points greater than the population mean, what is the z-score for the sample mean?

a. +6.00 b. +2.00 c. +1.00 d. Cannot be determined without knowing the population mean

Psychology

Polygamy includes both men with multiple wives and women with multiple husbands

Indicate whether this statement is true or false.

Psychology

As a child grows in height from infancy to preschool, his or her vocabulary also increases. This is a positive correlation. Explain why this correlation does not show causation but does allow one to predict either event

What will be an ideal response?

Psychology