Based on the provided text, define the term 'positive correlation' and describe how the relationship between individuals' stress levels and physical symptoms illustrates this concept. In your answer, recall what trend is observed when graphing these data on a scatterplot and how the variables move relative to one another.
Question: Based on the provided text, define the term 'positive correlation' and describe how the relationship between individuals' stress levels and physical symptoms illustrates this concept. In your answer, recall what trend is observed when graphing these data on a scatterplot and how the variables move relative to one another.
Sample answer: A positive correlation is defined by two variables moving in the same direction. In the example of stress levels and physical symptoms, as stress scores increase, the frequency of physical symptoms also tends to increase. When plotted on a scatterplot, this relationship is illustrated by an overall upward pattern/trend.
Key points:
- Define positive correlation as variables moving in the same direction.
- Recall that graphing this relationship on a scatterplot reveals an overall upward pattern.
- State that stress scores and the frequency of physical symptoms tend to increase together.
Rubric: To receive full credit, the answer must define positive correlation (variables moving in the same direction), identify the trend as stress and physical symptoms both increasing, and recall that this pattern is represented by an upward trend on a scatterplot.
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Research Methods in Psychology - 4th American Edition @ KPU
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When graphed on a scatterplot, an upward trend showing that physical symptoms tend to increase as stress scores increase indicates that the variables move in the same direction. This is a clear demonstration of a ________ correlation.
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Based on the provided text, define the term 'positive correlation' and describe how the relationship between individuals' stress levels and physical symptoms illustrates this concept. In your answer, recall what trend is observed when graphing these data on a scatterplot and how the variables move relative to one another.
Explain how the upward trend on the scatterplot demonstrates the concept of a positive relationship. In your explanation, describe how stress scores and physical symptoms relate to each other in this scenario and explain what 'moving in the same direction' means for these two variables.
A health psychologist is planning a study and expects to find a positive correlation between patients' stress levels and their physical symptoms. If a patient's stress levels decrease over the course of the study, what prediction should the psychologist make regarding the frequency of the patient's physical symptoms, and why? Limit your response to one to three sentences.