Covert sensitization was developed by

Which of the following best defines reaction range?

a. Genetically determined range of potential b. Environmentally determined range of potential c. Difference between nature and nurture d. Variation in the rate of pubertal development

When one set of measures is in interval form, and the other in ordinal,

then the appropriate correlational technique should be a. the Pearson r b. the t test c. the Spearman r d. the coefficient of determination