Question: Paste your statistical software output into your paper. Report the descriptive statistics for the survey items. Interpret the value of the coefficient (Cronbach) alpha generated
- Paste your statistical software output into your paper.
- Report the descriptive statistics for the survey items.
- Interpret the value of the coefficient (Cronbach) alpha generated by the field test results. Make sure you continue to improve your reliability. (It may take more than one iteration.
- Explain why certain designated items perform poorly.
- Recommend strategies for improving the internal consistency of the survey instrument, based upon the item analysis.
- Communicate in a manner that is scholarly, professional, and consistent with expectations for members of the psychological professions.
| Frequentist Scale Reliability Statistics | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| Estimate | Cronbach's | Average interitem correlation | mean | sd | |||||
| Point estimate | 0.790 | 0.256 | 2.235 | 0.579 | |||||
| 95% CI lower bound | 0.734 | 0.211 | 2.080 | 0.486 | |||||
| 95% CI upper bound | 0.840 | 0.298 | 2.389 | 0.714 | |||||
| Note. The following item correlated negatively with the scale: V2_9. |
| Frequentist Individual Item Reliability Statistics | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| If item dropped | |||||||||
| Item | Cronbach's | Item-rest correlation | mean | sd | |||||
| V1 | 0.708 | 0.860 | 2.426 | 1.021 | |||||
| V1_2 | 0.718 | 0.805 | 2.630 | 1.015 | |||||
| V2 | 0.750 | 0.602 | 2.407 | 1.037 | |||||
| V2_4 | 0.715 | 0.813 | 2.407 | 1.037 | |||||
| V1_5 | 0.735 | 0.682 | 1.815 | 1.183 | |||||
| V3 | 0.804 | 0.127 | 3.000 | 0.644 | |||||
| V1_7 | 0.731 | 0.711 | 2.019 | 1.107 | |||||
| V1_8 | 0.752 | 0.837 | 1.611 | 0.492 | |||||
| V2_9 | 0.896 | -0.910 | 1.796 | 0.762 | |||||
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