Sandra is interested in wearout - a decrease in effectiveness of advertising, following an initial increase in effectiveness of advertising after repeated exposure. She decides to present to participants 30 minute TV programs with 3 commercial breaks. Participants are divided into three groups. The first group will see the target ad in the first commercial break only filler ads will make up the other breaks) on a nature show, the second group will see the target ad in the first two commercial breaks during a one-half hour segment of the Jerry Springer Show, and the third group will see the target ad in all three commercial breaks of a 30 minute documentary on building a bridge in Japan. After the TV program is over, participants complete a five-minute task of counting e's in a page of text and then complete a scale that measures the participants intention to purchase the target product She found that M1-exposure = 5.6; M 2-exposures = 6,4; and M 3-exposures = 5,4 (on a 1-7 scale), What was confounded with the IV? number of exposures type of show Intention to purchase None of the above Researchers were interested in the effects of a management by objectives (MBO) program on supervisor job satisfaction. The researchers sent letters to 45 insurance agencies, with between 25 and 35 workers asking, if consultants could design a new MBO program for their organization. Twelve of the companies agreed to accept the consultants' changes. Consultants worked with management to design model MBO programs and then the companies implemented the MBO programs. The 33 companies who refused to be experimental companies were contacted again and asked to serve as control companies. Out of the 33 companies contacted, 15 agreed to serve as control companies. Control and experimental condition companies were then assessed six months later. The assessment consisted of having supervisors at all companies complete Spector's job Sotisfaction Survey (SS). Average ] scores were calculated for each company, and then averages were calculated for all control and experimental group companies. It was found that scores were statistically significantly lower at the experimental companies than the control companies What were the two levels of the IV? 45: 33 companies High: low MBO scores accepted MBO recommendations control 25:35 workers QUESTION 4 In an experiment, researchers wanted to know whether changing the level of lighting in a factory would have an effect on the productivity of employees; moderate levels of light would lead to the best productivity than low or bright lights. In order to address this questidn, three groups of employees were placed in separate work areas of the same factory and the level of lighting was systematically varied for each group as the employees as they operated machinery that produced small electrical components. The number of components produced was carefully tallied at the end of each B-hour shift for each group. What would happen if over the course of the experiment the temperature in the factory increased from 72 degrees to 80 degrees? Nothing, that's the independent variable Nothing that's the dependent variable Temperature would be an extraneous variable Temperature would be a confound variable. Researchers were interested in the effects of a management by objectives (MBO) program on supervisor job satisfaction. The researchers sent letters to 45 insurance agencies, with between 25 and 35 workers asking, if consultants could design a new MBO program for their organization. Twelve of the companies agreed to accept the consultants changes. Consultants worked with management to design model MBO programs and then the companies Implemented the MBO programs. The 33 companies who refused to be experimental companies were contacted again and asked to serve as control companies. Out of the 33 companies contacted, 15 agreed to serve as control companies. Control and experimental condition companies were then assessed six months later. The assessment consisted of having supervisors at all companies complete Spector's job satisfaction Survey (55). Average 5 scores were calculated for each company, and then averages were calculated for all control and experimental group companies. It was found that scores were (statistically significantly lower at the experimental companies than the control companies Advanced-level question: Something about the companies is confounded with the IV. What is it? Can you imagine how this confound may have caused the results? Consultant recommendations, consultants only gave recommendations when they were asked to do so Job satisfaction; job satisfaction scores were only collected from companies which agreed to be part of the study MBO; only companies with MBO agreed to be part of the study The MBO group companies were special, they wanted the MBO recommendations, the control companies die want them