Blog

A quota sample would be better than a stratified sample in more accurately representing the population.

A researcher is interested in the relationship between depression and authoritarian parenting. The researcher observes, “Depression is related to authoritarian parenting.” This is called a directional hypothesis.

A researcher should do a post hoc test after a t-test to determine if the relationships are significant.

A multiple baseline design differs from a single subject design because it does not involve a comparison of behavior before and during treatment.

A correlation of .21 is stronger than a correlation of -.33.

What is the charge on each of the capacitors Q1, Q2, Q3 corresponding to capacitor C1, C2, C3 in the figure? The potential difference across the capacitor is 5.0 V.

When a confound is found within an experiment, the external validity of the experiment is challenged.

Dr. Roper is doing a study where she is interested in how parents cope with raising a child with disabilities. She will interview parents and then look for patterns in the data so she can propose a theory of how parents cope. This is an example of deduction.

As Dr. Dollahite collected his qualitative data, he observed fathers, interviewed fathers, and had fathers complete a fathering questionnaire. This is an example of triangulation of sources.

Dr. Hee S. Drunk is using multiple regression to study the effects of alcohol on alertness.