A factorial study can combine elements of experimental and nonexperimental resea

Question

A factorial study can combine elements of experimental and nonexperimental research strategies, and it can combine elements of between-subjects and within-subjects designs within a single research study. A two-factor design, for example, may include one between-subjects factor (with a separate group for each level of the factor) and one within-subjects factor (with each group measured in all the different treatment conditions). The same study could also include one experimental factor (with a manipulated independent variable) and one nonexperimental factor (with a preexisting, nonmanipulated variable). In addition, a factorial design can use any number of factors. Identify the type of design being described in each scenario in the following table. Scenario Design Rhonda is studying the effects of hunger on academic performance. She uses hunger as a within- subjects factor, starting her subjects out with a very small breakfast and testing them at two-hour intervals throughout the day without any additional meals or snacks. She has a between-subjects factor of task difficulty, with three levels: easy, medium, and hard. Combined strategy Higher-order factorial Mixed design Robb lives in a community that experienced a powerful storm that destroyed a portion of the town. He is interested in how it has affected the ability of the residents to respond effectively to challenging situations. He recruits two groups of participants-those who were not directly affected by the storm and those who were affected, losing their homes and possessions. He has a between-subjects factor of task difficulty with three levels. Robin is interested in learning and is conducting an experiment with three different between-subjects factors-reward magnitude, reward delay, and task difficulty.

Explanation / Answer

combined strategy as the combied group has in between subject differences. Mixed design as here we have difficulty levels for the differences in the group and tehre are 2 different groups also. hence difference is between the subjects in a group and between the two groups. higher order factorial as it involves 3 in between subject factors i.e. reward magnitude, reward delay and task difficulty

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