Which of the following is NOT one of the steps of analyzing scores on measures with multiple items?
a. Reverse-score if necessary
b. Calculate Cronbach’s alpha
c. Compute an average
d. Remove outliers
Ans: D
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In John B. Watson's attempt to condition a phobia in a child, what was the conditioned stimulus?
a. A rat b. A loud noise c. Crying and other fear reactions d. Salivation
An independent variable is what the experimenter (or nature) manipulates
a. True b. False Indicate whether the statement is true or false
Which of the following are advantages to breastfeeding?
a. mother's reduced risk of cervical cancer b. infant's reduced risk of leukemia c. mother's reduced risk of ovarian cancer d. mother's reduced risk of leukemia
In a wide variety of animal species, decreasing caloric intake by 30 to 50% results in an increase in the lifespan of approximately what percentage?
a. 30% b. 50% c. 70% d. 90%