Assignment Task :

1 Conduct exploratory factor analysis on the following scales, in order to examine whether they are actually unidimensional or no . For each analysis report the following: Kaiser-Mayer-Olkin Measure of Sampling Adequacy, Bartlett's Test of Sphericity, total variance explained, eigenvalue(s) of retained factors. Optimism Mastery Life satisfaction Self esteem 
Assess the emerging factor loadings for each scale item and decide whether any items are performing poorly and should therefore be dropped from further analysis. With the remaining items for each scale estimate Cronbach alpha coefficient and item-total correlation. Report the reliability (Cronbach alpha) for each scale. Also, based on the item-to total correlation analysis decide whether any other items should be dropped from each scale. 
2. Calculate summated scales (composite scores) for Optimism, Mastery, Life Satisfaction, and Self-esteem. Use all items that were retained following your exploratory factor analysis, and item-to-total correlation procedures. For each summated scale report the average score and standard deviation. 
 

 

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  • Posted on : February 23rd, 2018

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