Exam 7: Causal Research Design: Experimentation

Which of the following statements is a limitation of Latin square designs?

________ refers to an extraneous variable that occurs when test units with extreme scores move closer to the average score during the course of the experiment.

All of the following statements are true about external validity except ________.

________ is a statistical design that allows for the statistical control of two non-interacting external variables in addition to the manipulation of the independent variable.

Unlike the randomized block design and the Latin square, factorial designs allow for interactions between variables.

Discuss the trade-offs that must be made in experimental design formulation when trying to obtain realistic amounts of internal and external validity.

Independent variables are the variables that measure the effect of the dependent variables on the test units.

With experimental designs, it is possible to control for some of the other causal factors.

Experimental designs may be classified as preexperimental, true experimental, quasi-experimental, or statistical.

In the posttest-only control group design, the treatment effect (TE)is obtained by ________.

The main disadvantage of a factorial design is that the number of treatment combinations increases multiplicatively with an increase in the number of variables or levels.

In the New York coupon experiment mentioned in your text, the experiment was conducted to test the effects of the face value of coupons on the likelihood of coupon redemption. Subjects were randomly assigned to 2 treatment groups. One group was offered 15-cent coupons and the other 50-cent coupons for four products. During the interviews, the respondents answered questions about which brands they used and how likely they were to cash coupons of the given face value the next time they shopped. In the preceding experiment, the test units were ________.

The true experimental design shown above is a ________ design.

Factorial design is a true experimental design that is used to measure the effects of two or more independent variables at various levels and to allow for interactions between variables.

________ refers to an extraneous variable attributable to the improper assignment of test units to treatment conditions.

A ________ is a quasi-test market in which respondents are pre-selected, then interviewed and observed on their purchases and attitudes toward the product.

A ________ is a test marketing program conducted by an outside research company in field experimentation. The research company guarantees distribution of the product in retail outlets that represent a pre-determined percentage of the market.

In many countries, the marketing, economic, structural, information, and technological environments are not developed to the extent that they are in the United States.

Which of the following is not true about the debriefing procedure?

________ is a statistical design in which the test units are blocked on the basis of an external variable to ensure that the various experimental and control groups are matched closely on that variable.