Correlations and Considering Explanations (1)

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Florida State College at Jacksonville *

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2012

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Psychology

Date

Dec 6, 2023

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docx

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2

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Correlations and Considering Explanations PSY2012 For the studies described below, a) decide whether the correlation is positive or negative and b) give TWO possible explanations for the finding. EXAMPLE OF ANSWER (NO. 4): Negative correlation (distance away from instructor increases, grades decrease) A. It is possible that sitting in the back of the room interferes with students’ performance. B. It is also possible that a history of poor grades causes students to prefer to sit in the back of the class. C. It is also possible that another variable, like anxiety, affects both variables. 1. A government study reveals that the more mothers smoke, the more her children are likely to exhibit behavioral problems. a. Positive correlation b. It is possible that mothers’ smoking may cause her children to act out. It is possible that children acting out may cause mothers to smoke more. It is possible that a third variable, like socioeconomic status, may affect both variables. 2. The more psychology courses students take during their college years, the higher scores they get on a measure of emotional intelligence. a. Positive correlation b. It is possible that taking psychology courses improves people’s emotional intelligence. It is possible that people who are emotionally intelligent prefer to take psychology courses. It is possible that another variable, like a serious life event, might affect both variables.
3. Researchers investigating the relationship between alcohol and memory found that higher doses of alcohol were associated with increasingly lower scores on a test of memory recall. a. Negative correlation b. It is possible that high levels of alcohol impair memory. It is possible that those with a poor memory like to drink larger amounts of alcohol. It is possible that a third variable, like low intelligence, might cause both variables 4. A college professor notices that the farther students sit toward the back of the room, the worse their grades in the course seem to be. a. Negative correlation b. It is possible that sitting in the back of the room interferes with students’ performance. It is possible that a history of poor grades causes students to prefer to sit in the back of the class. It is also possible that another variable, like anxiety, affects both variables. 5. A survey of adolescents noted that those who watched the most TV during the week tended to receive the lowest ratings on a measure of general health. a. Negative correlation b. It is possible that watching TV causes poor general health. It is also possible that those who have poor general health prefer to watch more TV. Additionally, it is possible that a third variable, like depression, may influence both TV watching and health.
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