Assgn 4 | Statistics homework help

A4.1: Chapter 7, Problem 7.1, Cohen’s Kappa to Assess Reliability with Nominal Data. Write a short  narrative of your process, an interpretation of your findings, and write your results.  Cut and paste the  Case Processing Summary, Crosstabulation, and Symetric Measures tables directly into your document  and refer to them in your interpretation.    A4.2: Chapter 7, Problem 7.2, Correlation and Paired t to Assess Interrater Reliability. Write a short  narrative of your process, an interpretation of your findings, and write your results. Cut and paste the  Paired Sample Statistics, Paired Samples Correlations, and Paired Samples Test tables directly into your  document and refer to them in your interpretation.    A4.3: Chapter 7, Problem 7.3, Exploratory Factor Analysis to Assess Evidence for Validity. Write a short  narrative of your process, an interpretation of your findings, and write your results to include tables. Cut  and paste the Descriptive Statistics, Correlations, KMO and Bartlett’s Test, Factor Matrix, Total Variance,  and Factor Transformation Matrix tables directly into your document and refer to them in your  interpretation.    A4.4: Chapter 7, Problem 7.4, Cronbach’s Alpha to Assess Internal Consistency Reliability. For each of the  following Scales; 7.4a Alpha for the Revised Competency Scale, 7.4b Alpha for the Revised Motivation  Scale, and 7.4c Alpha for the Revised Pleasure Scale, complete the following: Write a short narrative of  your process, an interpretation of your findings, and write your results. Cut and paste the Case  Processing Summary, Reliability Statistics, Item Statistics, Inter‐Item Correlation Matrix, and Item‐Total  Statistics tables directly into your document and refer to them in your interpretation. Include  appropriate headings to clearly show each separate reliability test completed.    A4.5, Application Problem ‐ Measuring Reliability and Validity.  Using the “hsbdata.sav” file, do the  following problems. Write a short narrative of your process and an interpretation of your findings. Cut  and paste your outputs directly into your document and refer to them in your interpretation.    a. Write a research question and a null hypotheses relating to the variables “mosaic” and “mosaic2” that  could be answered using a paired sample t test. Run the t test and provide a full interpretation if the  findings to include the outputs.  b. Combine “item01”, “item07”, “item12”, “item13”    to form a summated scale. Run the Cronbach’s  alpha for that scale and provide a full interpretation of the findings to include the outputs.   

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