A social condition that protects health in every nation is ______

Professor McSpell designed an experiment to test her hypothesis that exercise will increase spelling ability

She divided children into three groups and had one group do 10 minutes of exercises, one group do 30 minutes of exercises, and the third group do no exercise. She then tested all three groups of children to see how many words they could spell correctly on a spelling test. In this experiment, the scores on the spelling test serve as the a. dependent variable. b. independent variable. c. control group. d. reliability measure.

A duckling hatches next to a small puppy. Since the puppy is the first thing seen by the duckling, it follows the puppy everywhere and seems to assume that the puppy is its mother. This is an example of ______

a. attachment c. classical conditioning b. socialization d. imprinting