Blog

A researcher studies the effect of room music (fast, slow) and room cleanliness (tidy, untidy) on people’s dining experience at a restaurant. How many main effects are possible?

Which of the following is a reason a researcher may design an experiment with more than two levels of an independent variable?

While Daisuke is performing a cognitive task, a researcher uses a physiological measure that scans various areas of Daisuki’s brain. In this case, the researcher is most likely using a(n)

How can expectancy effects be reduced?

Internet research by Strassberg and Holty (2003) compared responses to women’s Internet personal ads. The researchers presented participants with an ad focusing on different characteristics such as (1) slim and attractive, (2) sensual and passionate, (3) painting and hiking, or (4) financially independent and ambitious. This is an example of a________ design.

A researcher conducted a study to analyze the effect of gender bias on company recruitment. Participants were told that the purpose of the study was something different than it actually was. This deception was most likely implemented to avoid

In a repeated measures design, when the sequence of presenting the treatments determines the participants’ responses in part, the researcher is dealing with

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.

How many main effects are possible in a study with a 2 × 2 × 2 × 2 factorial design?

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?