Advanced Placement (AP), 25.11.2021 14:00 ivanf30

Jane and Sara assigned participants to two groups. Group 1 ate 3 mint candies and then were blindfolded and offered small bits of food to identify the taste. Group 2 did not eat any mint; they were blindfolded and asked to identify tastes in the same bits of foods as Group 1. First, the study was conducted with elementary school students; then the study was repeated with middle school students; finally, it was replicated with high school students. The results for the high school students were very different than the other two schools. Later Jane and Sara found out that they were conducting their study right after lunch break in the elementary and the middle schools, and right before the break in high school. 1. What type of research is this?
2. What is the independent variable?
3. What is the dependent variable?
4. How should Jane and Sara have sampled participants for the study to have ecological validity?
5. Does the study have internal reliability? Does the study have external reliability?

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Jane and Sara assigned participants to two groups. Group 1 ate 3 mint candies and then were blindfol...

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