According to the National Science Foundation, the number of Americans who believe that there are valid ways of preventing and curing illnesses that are not recognized by medical professionals is about __________ percent

Suppose that a friend has given you several dozen plastic bottles. You immediately try to think of a variety of creative uses for these bottles. The task you are currently working on is most similar to

a. situated cognition b. a divergent-production task. c. an extrinsic-motivation task. d. the hill-climbing heuristic.

When the probability of a Type I error is less than .05, we say we have observed _____

a. a Type II error b. statistical significance c. the alternative hypothesis d. all of the above