Assessing Reliability with Nominal Data, Exploratory Factor Analysis and Cronbach’s Alpha
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, an interpretation of your findings, and your results. Cut and paste your outputs directly into your document and refer to them in your interpretation. Write the results.
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.
Morgan, G., Leech, N., Gloeckner, G., Barrett, K. (2013). IBM SPSS for Introductory Statistics
(5th Ed.). New York, NY
