Exam 2: Methods in Psychology

Participants must give their informed consent before participating in psychological research.

In an experiment,researchers exposed half the children to 2 hours of violence on television every day for a month and made sure the other half saw no violence on television at all.At the end of the month,they measured the level of aggressiveness in the children.What is/are the dependent variable(s)?

A description of a property in concrete measurable terms is a(n):

Which statement is an attribute of a good theory?

Increases in illegal drug use are associated with a higher risk of contracting HIV/AIDS.This is MOST clearly an example of:

A university recently banned the use of plastic water bottles on campus in an effort to be ecofriendly.A psychologist at the university is interested in the attitudes of the students towards this ban.She obtains a list of all the students enrolled in the university and arbitrarily selects 100 students for a survey designed to assess their opinions on the ban.In this study,which method has the psychologist used to select students for the survey?

What is the major problem associated with self-selection as a way to assign participants to the experimental and control groups?

Which statement is an example of a demand characteristic in everyday life?

Aaron trusts what he himself observes,not claims by others.Aaron takes a(n)_____ approach to knowledge acquisition.

As part of her course requirements,Jill participates in research studies conducted by professors.After she participates,she is debriefed during which:

Bydale Health has developed a new cancer-fighting drug.The company tests the effectiveness of the drug by conducting research using people of all age groups.The participants are segregated into groups,and each group is given a different dosage of the same drug.In this scenario,the dependent variable is the:

Susan,a researcher,conducts a study at a fruit and vegetable stand.She observes the stand's customers for a period of 3 days without their knowledge and notices that people are more likely to buy a bag of fruit and vegetables that they have sampled at random than those that have been sampled nonrandomly by the seller.Which statement is TRUE of Susan's observation?

One feature of a normal distribution is that it is usually positively skewed.

A theory is a testable prediction made by a hypothesis.

When the _____ variable is manipulated,at least _____ group(s)is/are created.

External validity means that:

Use the following to answer questions -(Scenario I)Figure 2.1 illustrates a _____ correlation between variables A and B.

When presented with information that is inconsistent with their attitudes or beliefs,people generally ask themselves which question?

Which measure lacks both reliability and validity?

In an experiment,researchers exposed half the children to 2 hours of violence on television every day for a month and made sure the other half saw no violence on television at all.At the end of the month,they measured the level of aggressiveness in the children.What is/are the independent variable(s)?