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PSY 7864 CU Week 4 Correlation in Data Analysis & Application Essay

PSY 7864 CU Week 4 Correlation in Data Analysis & Application Essay

Question Description

CORRELATION APPLICATION AND INTERPRETATION

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Week 4 assignment Instructions

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Complete the following for this assignment:

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The grades.sav file is a sample SPSS data set. The data represent a teacher’s recording of student demographics and performance on quizzes and a final exam across three sections of the course. Each section consists of 35 students (N = 105). There are 21 variables in grades.sav.

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This week’s assignment is on correlations. You will analyze the following variables in the grades.sav data set:

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SPSS Variable

Definition

Quiz1

Quiz 1: number of correct answers

GPA

Previous grade point average

Total

Total number of points earned in class

Final

Final exam: number of correct answers

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Step 1: Write Section 1 of the DAA: The Data Analysis Plan

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  • Name the four variables used in this analysis and whether they are categorical or continuous.
  • State a research question, null hypothesis, and alternate hypothesis for one X-Y pair. For example, you could articulate a research question, null hypothesis, and alternate hypothesis for quiz1 (X) and final (Y).

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Step 2: Write Section 2 of the DAA: Testing Assumptions

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Test for one of the assumptions of correlation – normality.

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  • Create a descriptive statistics table in SPSS to assess normality. This table should include the four variables named above.
  • Paste the table in the DAA.
  • Interpret the skewness and kurtosis values and how you determined whether the assumption of normality was met or violated.

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Step 3: Write Section 3 of the DAA: Results and Interpretation

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  • Paste the intercorrelation matrix (SPSS Correlation table) for the four variables into the document.
  • First, report the lowest magnitude correlation in the intercorrelation matrix, including degrees of freedom, correlation coefficient, and p value.
    • Specify whether or not to reject the null hypothesis for this correlation.
  • Second, report the highest magnitude correlation in the intercorrelation matrix, including degrees of freedom, correlation coefficient, and p value.
    • Specify whether or not to reject the null hypothesis for this correlation.

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Step 4: Write Section 4 of the DAA: Statistical Conclusions

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  • Provide a brief summary of your analysis and the conclusions drawn about correlations.
  • Analyze the limitations of the statistical test and/or possible alternative explanations for your results.

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Step 5: Write Section 5 of the DAA: Application

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Analyze how you might use correlations in your field of study.

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  • Name an independent variable and dependent variable that would work for such an analysis and why studying it may be important to the field or practice.

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Submit your DAA template as an attached Word document in the assignment area.

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Resources:

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7864 Course Study Guide:

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https://courseroomc.capella.edu/bbcswebdav/institution/MULTI/MULTI7864/210100_10x/Course_Files/cf_7864_course_study_guide.pdf

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https://ebookcentral-proquest-com.library.capella.edu/lib/capella/detail.action?docID=5569480

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Field, A. (2018). Discovering statistics using IBM SPSS: North American edition (5th ed.). Sage.

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  • Review Chapter 8’s information on assumptions and effect sizes to help you with your assignment.

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