Validity is whether an instrument measures what it is supposed to measure; reliability is whether an instrument gets consistent results across administrations. If spouses fill out a self-report measure of stress from their spouse's point of view, and the spouses' scores match closely, we can say that the self-report inventory is
A) ?valid.
B) ?reliable.
C) ?both valid and reliable.
D) ?neither reliable nor valid.
A
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What will be an ideal response?
Findings from the NICHD study of the effects of early childcare indicate
A. the impact on children of poverty is low. B. the impact on children who have been in church-operated centers is high. C. quality childcare was a more important predictor of cognitive development than family variables. D. family variables were more important predictors of cognitive development than quality of childcare.
Roughly 40% of the homeless in Canada also have a mental illness
Indicate whether the statement is true or false
The blood brain barrier is
A) a spongy bone. B) located in the pia mater. C) about the size of the cortex. D) located in all three meninges. E) none of the above