In a correlational research study, identify the two descriptive statistics that indicate the variables are essentially unrelated, and explain what statistical analyses must still be performed and reported in a formal research report.
Question: In a correlational research study, identify the two descriptive statistics that indicate the variables are essentially unrelated, and explain what statistical analyses must still be performed and reported in a formal research report.
Sample answer: In a correlational study, the two descriptive statistics indicating that the variables are essentially unrelated are a scatterplot showing an indistinct 'cloud' of data points and a calculated Pearson's that is trivial, such as . Despite these descriptive findings, the researcher is still required to conduct and report inferential statistics for the formal research report.
Key points:
- A scatterplot showing an indistinct 'cloud' of data points indicates no relationship.
- A trivial Pearson's value (e.g., ) indicates that variables are essentially unrelated.
- Inferential statistics are still required for the formal research report.
Rubric: To earn full credit, the answer must identify: 1) A scatterplot revealing an indistinct 'cloud' of data points. 2) A calculated Pearson's that is trivial or approximately . 3) The requirement to conduct and report inferential statistics in the formal research report.
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Research Methods in Psychology - 4th American Edition @ KPU
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