Z-scores are useful because

a) z-scores indicate a person's standing as compared to the group mean
b) z-scores can be converted to percentiles (assuming a relatively normal distribution)
c) z-scores are usually positive
d) both a and b


D

Psychology

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Todd runs into Sarah, his former girlfriend. Oh no! He can't remember her name and calls her Robin, the name of his current girlfriend. What type of interference did Todd just experience?

A. primary interference B. secondary interference C. retroactive interference D. proactive interference

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_____ All of the grammars of the world's languages are highly similar

Indicate whether the statement is true or false

Psychology

It is possible to quantify the strength of the association between x and y using a quantity called the ______.

a. slope b. intercept c. the covariance d. correlation coefficient

Psychology

The only cells in the body that do not contain 23 pairs of chromosomes are

A) stem cells. B) bone cells. C) neurons. D) gametes.

Psychology