Brittney is interested in the relationship between caloric intake and emotional arousal. She creates a carefully measured array of attractive snack foods. Brittney allows participants to eat as much of various snacks as they want while completing a written measure of emotional arousal. She then calculates the calories they consumed based on the amount of food that is left and looks at the relationship between the amount of calories each participant consumed and his or her emotional arousal score. What research strategy is being used?

The hawthorne works was a large western electric factory with 45,000 employees. during the 1920s and 1930s, hawthorne works was the site of some well-known industrial studies. in one of the studies, researchers investigated the impact of different working conditions on worker productivity. prior to the start of the study, researchers secretly measured workers' productivity for several weeks. then researchers chose two workers, who then chose their own teams. the teams were separated from the general workforce and completed their work in different experiment rooms where the researchers could observe them more easily. over a 5-year period researchers manipulated the structure of the workday for each team (number and duration of breaks and number of hours per shift). for each of these changes in working conditions, the researchers measured the effect on productivity. for some conditions, such as frequent short breaks, workers rebelled by intentionally decreasing productivity.why did the researchers secretly measure the workers' productivity before creating the two treatment groups? a, to create similar treatment groups so that a cause-and-effect relationship could be establishedb, to draw conclusions about the productivity of all workers in the plant based on the test groupsc, to directly control for confounding variablesd, to provide a baseline for measuring worker productivity

Over the past decade, brands that were once available only to the wealthy have created more affordable product extensions, giving a far broader range of consumers a taste of the good life. jaguar, for instance, launched its x-type sedan, which starts at $30,000 and is meant for the "almost rich" consumer who aspires to live in luxury. by marketing to people who desire a luxurious lifestyle, jaguar is using:

howard, fine, & howard is an advertising agency. the firm uses an activity-based costing system to allocate overhead costs to its services. information about the firm's activity cost pool rates follows: stooge company was a client of howard, fine, & howard. recently, 7 administrative assistant hours, 3 new ad campaigns, and 8 meeting hours were incurred for the stooge company account. using the activity-based costing system, how much overhead cost would be allocated to the stooge company account?