Exam 10: True Experiments, Part 1 Single-Factor Designs

The experiment by Pinel on exploration as a function of Electroconvulsive Shock-learning interval used a multiple-condition design to

An independent variable always has at least two

Multiple-condition experiments are employed to

The experiment by Braun, Ellis, and Loftus 2002) on the effect of a Disney advertisement on memory for visiting a theme park was done between subjects because

Reverse counterbalancing involves which one of the following procedures?

If productivity increased in a factory after all of its employees were switched to a work schedule consisting of four 10-hour days, should management really credit the schedule switch with the improvement?

A drug and a placebo are compared for treating diabetes. A random half of the subjects receive the drug, while the other half receives the placebo. Blood glucose level is tested in all of the subjects several times a day. What type of design does this study represent?

To determine the effect of counseling on the self-esteem of divorced women, a researcher measures the self-esteem of a group of women before and after they have received counseling and compares the before and after measurements. What type of design does this study represent?

The control condition in the experiment described in question 38 is

Which of the following is a true experimental design?

Professor Johns is performing an experiment to test hypnosis as a treatment for smoking. He is trying to decide which type of experimental design will be appropriate for the study. Which would you suggest?

In a well-designed between-subjects experiment, the participants would

The conditions of a true experiment allow a researcher to infer

A doctor prescribes a new drug for a sick patient. The patient gets well. Should the doctor believe that the drug made the patient well?

A research procedure in which the scientist has complete control over all aspects of the study is called:

Participants in a within-subjects experiment are performing an odor identification task in which the smell of vinegar is presented at a particularly high concentration. The smell that follows the presentation of the vinegar is always poorly identified, regardless of which odorant it is. What should be a concern for this experimental design?

Dr. Schreiber is performing a within-subjects visual search experiment, which is a little like a video game. People seem to get a good deal better at the task after about 10 practice trials. What should be a concern for his experimental design?

The one-group posttest-only design should be avoided because

A researcher would like to know whether his new dog training program is effective. He tests a group of dogs before they start the program, and then again afterwards. What research design has he used?

A researcher plans a study to test the effectiveness of the discussion method in an introductory research methods course at the college level. One instructor will use the discussion method in her class several times during the semester. Another instructor will teach the same content, but without using the discussion method. The researcher will collect the following data: student scores on mid-term and final exams and on a scale measuring attitudes toward instruction. Discuss at least three recommendations that you can provide to improve this experimental design.