Why would we expect the correlation coefficient for a measure of reliability to be positive?
What will be an ideal response?
Because reliability is a measure of consistency, individuals should receive the same score, or close to the same score, each time they take a test, on each half of a test, or on alternate forms of the test. Thus, we would expect the correlation coefficient to be positive, indicating consistency or similar scores. If the correlation were negative, this would not indicate consistency.
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Which of the following accurately describes what happens to unused synapses in the brain?
A. Unused synapses continue to function throughout the life span. B. Unused synapses are pruned and neurons are reserved for future use. C. Unused synapses eventually die, leading to disorders such as dementia. D. Unused synapses are used by the corpus callosum, leading to gains in gross motor skills.
The marriage and motherhood mandates fuel women's intense focus on , that is, learning how to attract and interest males as prospective mates
A) ?sexual orientation B) ?heterosexual success C) ?reproductive fitness D) ?the self-reliant mandate
The role of the health psychologist in cardiac rehabilitation is MOST likely to include
A) ?assisting in surgery. B) ?implementing the exercise component of the program. C) ?helping patients make and sustain lifestyle changes to lower risk. D) ?designing and implementing dietary changes.
The following abilities of school-age children are true EXCEPT
A. by 6 or 7, many children can count in their heads. B. the ability to add numbers appears before subtraction. C. children become more adept with age at solving story problems. D. the ability to estimate does not change significantly during middle childhood.