One formula for the correlation between a continuous variable and an artificially dichotomized variable is
a. Spearman's rank order formula.
b. the point biserial correlation.
c. the phi coefficient.
d. the biserial correlation.
d
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Dr. Redding has found a correlation of +0.65 between snoring and weight. This indicates that
a. overweight individuals tend to snore less than underweight individuals. b. there is no relationship between weight and snoring. c. overweight individuals tend to snore more than underweight individuals. d. individuals who go on a diet will most likely begin to snore.
The first modern token economy was developed by
a. Wolpe. b. Maconochie. c. Lancaster. d. Ayllon and Azrin.
Infants that are wary of new situations and strangers and who often cannot be comforted by the caregiver are likely to have a(n) ____ attachment pattern
a. secure b. anxious-avoidant c. anxious-resistant d. disorganized
According to Piaget, it is not until adolescents are around ___________ years old that they are fully settled in the formal operational stage
a. 13 c. 15 b. 14 d. 16