# QUANTITATIVE ANALYSIS: EVIDENCE FOR RELIABILITY AND VALIDITY

Using the ChapterSixData.sav file, do the following problems.Print your outputs after typing your interpretation on them. Please circle thekey parts of the output that you discuss. Use the information in theappropriate Output Interpretation and How to Write sections.

6.1 Compute Cohens kappa to assess reliability using Rater 1 andRater 2. Interpret your output as in Output 6.1 by writing an explanatoryparagraph as you would in the method section of an article or paper.

6.2 Compute interrater reliability by running a paired t test forthe essay score 1 with the essay score 2. Interpret your output following theguide in the Interpretation of Output 6.2. Write up your results for thisanalysis as you would in the method section of an article or paper.

6.3 Run an Exploratory Factor Analysis using the extraction methodof principal axis factoring as demonstrated in Problem 6.3. Run the factoranalysis on the 13 items related to stress. In the extraction window (see Fig.6.7), request fixed number of factors to extract as 2. Study your outputusing the Interpretation of Output 6.3, make a table and write up your resultsas you would for an article or paper.

6.4 Run Cronbachs alpha for the five happiness scale items fromthe Chapter Six data file. Follow the procedures outlined in Problem 6.4. Writeup an explanation of your resulting Cronbachs alpha finding as you would in anarticle or paper.
Instructions

1.     Attachyour word document for review
2.      Write the problemnumber and the problem title as a level one heading (Example A.1.1: Chapter2, Problem 2.1, and then provide yourresponse. USe references throughout your response
3.      Use level two headingswith short titlesfor multi part questions (Example A1.1.a, Short Title,A1.1.b, Short Title II, etc.)
4.      Use appropriate level headings for key elementsof your discussion such as Research Questions, Hypotheses, DescriptiveStatistics, Assumptions & Conditions, Interpretation, Results, and others.Your goal is to make your analysis easy to follow and logical.
5.     Ensurethat all tables and graphs are legible and include a figure number.
6.      Carefully reviewyour document prior to submission for formatting, flow, and readability. Keepin mind that running the statistical tests is only the first half of thechallenge; you must be able to clearly communicate your findings to the reader.

Morgan, G. A., Leech, N., Gloeckner, G., & Barrett, K. (2020). IBM SPSS for introductory statistics (6th ed.). Routledge.