Saul, a researcher, offers a bowl of normal dog food and ano…

Saul, a researcher, offers a bowl of normal dog food and another bowl of vitamin-enriched dog food to his pet dog. He then records the amount of food consumed from each bowl to measure his pet dog’s food preference. Saul has most likely used a________ in this scenario.

A researcher examines the effect of the physical attractiven…

A researcher examines the effect of the physical attractiveness of a driver involved in an automobile accident (unattractive, average, or attractive) and the severity of damage caused ($500, $1,500, or $2,500) on judgments of responsibility assigned to the driver. Which of the following represents the factorial design?

Ralph, a researcher, employs a confederate to push into a qu…

Ralph, a researcher, employs a confederate to push into a queue at a grocery store checkout counter in front of a person who is second and then another person who is ninth in line. He then records the number of verbal responses toward the confederate at each instance, as a measure of aggression. The manipulation employed in this scenario is an example of a________ manipulation.

Svetlana wants to know if a new sports drink improves physic…

Svetlana wants to know if a new sports drink improves physical performance. The number of push-ups each participant can complete in 1 minute is recorded first. The participants are then given 8 ounces of the sports drink, and the number of push-ups completed in 1 minute is recorded again. Svetlana finds that the number of push-ups completed is less after consuming the new sports drink. This finding is likely the result of a________ effect.