A testing bureau reports that the mean for the population of Graduate Record Exam (GRE) scores is 500 with a standard deviation of 90 . The scores are normally distributed. The percentile rank of a score of 667 is _________
a. 3.14% c. 3.22%
b. 96.78% d. 96.86%
D
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A study finds that rats raised in stimulating environments have more dendrites and synapses than rats raised in boring environments. This study suggests that ____.?
a. ?experience plays an important part in the structure and functioning of the brain b. ?neural plasticity occurs only during the first few years of life c. ?connections in the brain are determined by genetic factors d. ?the brains of rats are more lateralized than those of humans
During the Victorian era in American society, grievers were encouraged to express their emotions in response to the death of a loved one
Indicate whether the statement is true or false
At the holophrastic stage of language acquisition, the one-word terms the child uses are
a. simply labels for common objects or actions that occur frequently. b. typically imitations of adult words that have little meaning for the child. c. believed to be attempts to express complex or elaborate ideas with only a single word. d. the first evidence that the child's speech is rule-governed, not imitative.
If a researcher gives a personality test to several individuals and compares their resulting personality profiles with actual observations of the individuals’ behavior, she is undoubtedly testing the ____ of the personality tests
a. ?reliability b. ?congruency c. ?validity d. ?standardization