Dr. I.M. Bright is studying whether digital or real life exhibits at the Greensboro Science Center are preferred by 8-year-old children. Specifically, she will examine whether participants spend more time at the digital animal exhibit or the real animal exhibit. In deciding how to
Dr. I.M. Bright is studying whether digital or real life exhibits at the Greensboro Science Center are preferred by 8-year-old children. Specifically, she will examine whether participants spend more time at the digital animal exhibit or the real animal exhibit. In deciding how to divide children in her sample, she assigns the children who visit in the morning to the digital animal exhibit and the children who visit in the afternoon to the real animal exhibit. She records the amount of active engagement (i.e., time spent) by children at each exhibit.
Dr. Bright found that children spent significantly more time in the digital animal exhibit as compared to the real exhibit and therefore concludes that 8-year-olds prefer digital exhibits.
(1) Define the term “research confound.” Does Dr. Bright have any research confounds in her study (and if so, list them)?
(2) Is Dr. Bright’s conclusion that 8-year-olds prefer digital exhibits valid? Explain with reference to the appropriate technical terminology.
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