Exam 3: Research Methods

The study of the distribution and determinants of the frequency of a disorder in humans is known as ______.

______ twins are identical twins, resulting from a zygote dividing during the first two weeks of gestation.

In an experiment, the dependent variable is

The confound hypothesis is BEST defined as a

In a study of white-collar workers, Velma found that there was a positive correlation between sick days taken and self-reported alcohol and drug use. A graph of her results would show a

The ______ is a statistical hypothesis that is tested to determine if there is a difference between the experimental and control groups.

At a DUI checkpoint, some cars are stopped at random, but many others are not stopped. Using the terminology of psychological research, the cars that are stopped may be considered a ______ of all of the cars that pass by the checkpoint.

Several years ago, the social media platform was criticized for manipulating the emotional content of the news feeds of nearly 700,000 users without their knowledge. Facebook claimed that its actions were consistent with the data use policy to which users agree when they become members. Does Facebook's response allay any concern you may have with respect to their manipulation of news feeds? Why, or why not?

Empiricism is BEST defined as ______.

Of all the research designs, only ______ can tell us about cause and effect.

The director of a community health organization reads that about 1,300 new cases of HIV infection are expected in her city in the coming year. This statement illustrates an epidemiological statistic called ______.

A formally stated expectation about what will happen is a hypothesis.

The ability to make valid inferences regarding the effect of the independent on the dependent variable depends on ______ validity.

Irving has noticed a pattern: The more alcohol people drink, the more aggressive they seem to be. Which research method would aim at verifying the relationship between these two variables?

______ twins arise from the situation in which two different eggs are fertilized by two different spermatozoa.

In research sites that receive federal funding, a(n) ______ board is responsible for monitoring research to ensure studies are ethical.

Which of the following statements BEST expresses the relationship between a sample and a population?

Prevalence is BEST defined as

Psychodynamic descriptions of Anna O. reflect a method called the ______ study.

Experimental group is to control group as ______ variable is to ______ variable.