Exam 14: Quasi Experiments

A criminal psychologist is interested in studying the effect of a new furlough program on inmate morale.There are two prisons involved in the study.One prison will institute the furlough program and the other prison will not.The psychologist arranges with the superintendent of both prisons to measure inmate morale before the furlough program begins and six months after the program has started.What type of quasi experimental design is illustrated in this example?

You are interested in determining whether the ability to name odors changes with age.Specifically,you believe that children over age 7 may perform much better than those under 4 on an odor identification task.Explain how you might construct a study longitudinally and cross sectionally.What are the advantages and disadvantages of each? Now try a cross-sequential design.What are its advantages and disadmantages?

A documentary film director made a series of films about the lives of a set of children when they were 7,14,21,28,and 35 years of age,i.e.,the films 7-Up and 14-Up...What type of research design is this?

Combining the results of many studies as if they were one large study is called

A quasi experiment has lower ____ validity but may have higher ____ validity

A time series design may be considered a

The most common quasi experimental design is the ____ design.

A single group of subjects is measured on a certain variable at periodic intervals and the experimental treatment is administered between two of these intervals.This is an example of the ____ design.

Which one of the following statements is true concerning the nonequivalent control group design?

The distinctions between true and quasi experiments,in general,depend upon the degree to which

Effect size is compared across different studies by

When Alexander Wagenaar compared alcohol-related traffic accidents before and after the increase of the drinking age,the ____ design was used.

A child psychologist believes that the level of aggressive behavior of 3- to 5-year-old children is strongly influenced by the types of toys available to play with.To test her hypothesis,she arranges with a local preschool to run the following experiment: For one week,the children will be able to play with all the toys normally available at the school.Then,all war-like toys (toy soldiers,tanks,guns,etc.)will be removed for a week.In the third week,the war-like toys will be reintroduced,and in the fourth week removed again.During each week,the psychologist will observe the children's level of aggressive behavior.What type of quasi experimental design is illustrated in this example?

In a quasi experiment,the researcher

If X = experimental treatment and O = pretest or posttest observation,then for "O X O",O represents the ____ design.

An interrupted time series design lacks

In a true experiment,the researcher ____ variables,and in a quasi experiment the researcher ____ variables.

People sometimes resist a program evaluation because

The effect resulting from comparing subjects of the same ages at different times in a cross-sequential design is called a

Whether quasi experiments with pretest and posttest designs can be interpreted depends on