When comparing the mean of a sample of 30 people to the population mean, the degrees of freedom are 31

The estimated lifetime prevalence of bulimia nervosa is what percentage of females?

a) 5-8% b) 3-6% c) 1-4% d) .5-1%

According to Albert Bandura, a person's belief about his or her skills and ability to perform certain behaviors is known as

a) self-efficacy. b) locus of control. c) phenomenology. d) reciprocal determinism.