Psychology Ch.2

Theory. (This is the definition of a theory.)

Be willing to make risky predictions. (Scientists should be willing to make "risky predictions." All the other choices are the opposite of ideal characteristics of scientists - not express scepticism of new ideas, rely on scientific intuition, not support falsifiable theories)

It shows whether two or more variables are related. (Correlation is a technique used to measure the strength and direction of a relationship between two or more variables.)

Experiment.
(Since this example is looking for a cause-and-effect relationship, experiment is the only appropriate method)

Independent Variable. (This is the definition of an independent variable.)

To eliminate experimenter effects. (Double-blind studies are used to eliminate possible bias and experimenter effects.)

It is often useful in the first stages of a research program. (Naturalistic observation is important early in the research process to generate hypotheses, but it does not test hypotheses.)

Organize and summarize research data. (Descriptive statistics organize and summarize results, while inferential statistics help to determine whether results are significant.)

Combine results from several studies. (Meta-analysis is a statistical technique for combining the results of multiple studies.)

Obtain informed consent from subjects.
(CPA ethical guidelines require the use of informed consent to protect research subjects.)