Exam 9: Experimental Research

Define the following terms -maturation effect

Define the following terms -experimenter expectancy

Define the following terms -static group comparison

An advertising firm hired by Multinational Motors wants to demonstrate that its advertising campaigns improve Canadian public perceptions of Multinational Motors' vehicles.The advertising firm surveys Canadians every year over the course of its 10-year contract with Multinational Motors.Each year,Canadian public perceptions of Multinational Motors increased with the exception of 2009.Just prior to conducting the 2009 survey,Multinational Motors was forced to recall an entire line of vehicles with defective brake systems,which resulted in several,highly-publicized deaths.What threat to internal validity might the results of the 2009 survey reflect?

Define the following terms -pre-experimental designs

Which of the following is NOT one of the pragmatic,common sense ideas that accounts for the difference between the successful research projects of an experienced researcher and the difficulties a novice researcher faces?

Define the following terms -Solomon four-group design

Doctoral candidate Stella Sodapop wanted to see whether caffeine intake increased a subject's state of sexual arousal.She randomly assigned 100 high school seniors to either an experimental or control group.The experimental group drank a high caffeine soda,while the control group drank a caffeine-free soda.She then measured and compared arousal states for both groups.What type of design did Stella use?

Researcher Zoe Zednick wanted to test the effectiveness of a new anger management treatment session at the Prairie County social work agency.She assembled 24 clients who had been referred for anger management and divided them randomly into two groups of 12.One group was assigned to the new anger management session while the other group went to a traditional anger management session.Each group was given an intake assessment that measured anger management skills.After clients finished the sessions,Zednick measured the level of anger management skills for all subjects in both groups.What experimental design did she use?

Compare the classic experimental design with each of the three pre-experimental designs. What are the problems with each of the pre-experimental designs?

Several people criticized Professor Peggy Pandemonium's experiment on "the effects of density of living conditions on aggression" for its external validity problems.This means her study had problems with

Professor Bonnie Bonom said,"I've got to debrief the subjects" and walked into the experimental lab.What is she going to do?

Define the following terms -Hawthorne effect

Teachers Jack Black and Shannon Shack want to increase the percentage of high school freshmen who pass an algebra exam (dependent variable).They conduct experiments on five sets of classes (named A to E)in Toronto area schools.They randomly assign students and give a pretest in September followed by a post-test the following January.The treatment is teaching method.The experimental groups are taught with special in-class demonstrations and pictorial games quizzes on computers,but no homework assignments,textbooks,or tests.The control groups are taught in the traditional manner with a textbook,homework,formulas on the blackboard,and tests. Passing the Math Exam Pretest Score Posttest Score A Experimental Group 20\% 81\% Control Group 19\% 62\% B Experimental Group 33\% 87\% Control Group 15\% 56\% C Experimental Group 22\% 77\% Control Group 25\% 76\% D Experimental Group 66\% 69\% Control Group 67\% 98\% E Experimental Group 1 21\% 79\% Control Group 1 20\% 66\% Experimental Group 2 68\% Control Group 2 56\% -Which results for a set of classes suggest that there might have been a “testing” effect from the pretest?

Define the following terms -placebo

Define the following terms -double-blind experiment

Define the following terms -laboratory experiment

Define the following terms -deception

Define the following terms -one-shot case study

What term best describes the following experimental design notation? 0 0 0 0 0 0 0 0 0 0 X 0 0 0 0 0 0 0 0