____ synthesize observations to explain phenomena, and they can be used to make predictions that can be tested through research.

Osteoporosis is associated with:

A) dysmenorrhea. B) amenorrhea. C) metrorrhagia. D) menhorrhagia.

If you square the correlation coefficient, you will get a number telling the

a. percent of variance accounted for by the correlation. b. standard deviations accounted for by the correlation. c. statistical significance of the measure. d. amount of causation between the two variables.