You are asked to fill out a questionnaire indicating your preferences for types of food when you eat in a restaurant. The research method used here is called ______

Which is not a limitation of the experimental method?

(a) it cannot be used for some important questions (b) in the world, things are all correlated rather than having "other" things held constant (c) causal inferences cannot be made from experimental data (d) there is, in most experiments, just a single situation

The scientific method suggests that when data contradict one's theory, the researcher should

a. critically attack the weaknesses of the data. b. modify or discard the theory. c. search for support for the theory in other writings. d. steadfastly defend the theory against criticism.