Exam 2: Research Methods in Psychology

A researcher is studying the effectiveness of a new serotonin reuptake inhibitor for the treatment of depression.She divides the patients with depression in half.Group X is given the new drug and Group Y does not receive any thing.At 2,6,and 10 weeks,she assesses both groups for depressive symptoms.What is wrong with this study?

Which of the following is an advantage of the survey method?

In 1989,a group of researchers at the National Institute of Mental Health conducted a study involving the relationship between ____________,which is an example of the ____________ method.

Which of the following is an example of research using the survey method?

Five students had the following scores on a psychological test: 10,10,15,25,and 40.The mean of these five scores is:

Animals are considered to be appropriate subjects of research when it would be considered unethical to perform the same research with ____________.

Anything that can be assigned a numerical value is a:

In a study measuring people's anxiety after riding a roller coaster or a merry-go-round,the type of ride is the ____________ variable.

A correlational study is used to:

What does the size of a correlation coefficient indicate?

In research studies,a sample holds little value in terms of practical application unless it is a ____________ sample.

Dr.Hernandon believes that time spent playing video games is negatively associated with reading fluency.He asks parents to record the average number of hours their children spend playing video games each day.He compares these hours with scores on the Woodcock-Johnson reading test.His correlation coefficient confirms that the number of hours playing video games is strongly correlated with decreased reading fluency.Which correlation coefficient would fit his data?

The U.S.National Institutes of Health now require that all new research grants involving human participants must study ____________ samples.

A researcher interested in studying the life satisfaction of adolescents versus adults would be most likely to choose which of the following methods?

Dr.Moseley is conducting a study to test the effectiveness of a new anti-psychotic medication.Participants are divided into two groups,with one group receiving the experimental medication and the second group receiving a pill that looks like the experimental medication but does not actually contain medication.The group receiving the experimental medication is called the ____________ group.

The ethical principle of ____________ states that researchers do not have to inform participants of the full nature of the study before the study begins,provided that participants do have enough information to make an informed decision about their participation and provided that the researcher reveals the full details immediately following the study.

What does the positive or negative sign of a correlation coefficient indicate?

Confidentiality requires that:

Dr.King was interested in conducting a study involving adolescent males in a corrections setting.Facility staff informed individuals who refused to participate in her study that they would receive consequences for their nonparticipation,such as additional yard work and cleaning detail.Why was Dr.King so concerned?

A theory is a: