Which of the following is true about correlation statistics?
a. A negative correlation is always undesirable.
b. A strong positive correlation is always desirable.
c. A weak correlation in one study might be more desirable than a strong correlation in another study if the two studies differ with regard to what variables are being correlated.
d. A strong correlation is always more desirable than a weak correlation,
C
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American women earn 85-90 cents on the dollar compared to American men for the same work.
Answer the following statement true (T) or false (F)
The most commonly abused drug(s) among older adults is/are ______.
A. alcohol B. prescription medications C. marijuana D. caffeine
Why are some long-term acclimatizations difficult to distinguish from adaptations?
A) Acclimatizations may persist even after the individual moves to another environment. B) After a while, acclimatizations become programmed in the genes. C) Acclimatizations are biologically almost identical to adaptations. D) Both acclimatization and genetic adaptations are overrun by cultural adaptation over time.
When you have two measurements—one before the treatment and one after the treatment and have a comparison group, it helps in:
a. controlling the effect size b. reducing the cost of the study c. eliminating the role of chance d. using a limited number of variables