While there are several factors that influence nutritional needs, the average teenage girl should consume about ____ calories a day

What did a 13-year follow-up study find about the effect of multisystemic therapy (MST) on recidivism rates among seriously troubled youth?

a. MST increased rates when compared to those not receiving the treatment. b. MST decreased rates, but overall rates were still quite high. c. MST decreased rates significantly. d. MST had no effect on recidivism rates.

Suppose we find a strong positive correlation between how happy people are and how many friends they have. Which conclusion, if any, can we draw? a. Being happy helps you make friends

b. Having friends makes you happy. c. Being healthy increases happiness, and also increases the chance of friendships. d. None of these conclusions follow from the data.