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personality_sum_scores_neo [2021/08/30 13:51] laura [Table] |
personality_sum_scores_neo [2021/08/30 15:50] laura |
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- A sum score for all participants with at least one valid item, with missing items imputed to the mean of all non-missing items //neoinputed_...// | - A sum score for all participants with at least one valid item, with missing items imputed to the mean of all non-missing items //neoinputed_...// | ||
- | Besides the different sum scores, the number of valid items is provided. Enabling everyone to | + | Besides the different sum scores, the number of valid items is provided. Enabling everyone to decide how many valid answers is enough to include a sum score.\\ |
- | + | ||
=== Remarks === | === Remarks === | ||
- | total facet = 8, total FFI = 12 | + | * The total number of items for a facet is 8, for a domain this is 12. As a result, the sum score for facets ranges from 0-40 and for the domains from 0-60. |
- | o SUM1 for Extraversion as one variable is missing (11 vs 12 items)!! | + | * The FFI item extraversion has one missing question. As a result no sum score item nr 1 has been calculated (as there is always at least one missing question). |
- | Note that even in the old versions of the questionnaire, i.e. before adding the missing FFI items, the questionnaire did already contain some FFI items: 5 out of 12 FFI neuroticism items, 3 out of 12 FFI conscientiousness items, and 1 out of 12 FFI extraversion items. Therefore, FFI SUM2 and FFI SUM3 are calculated even for subjects who were administered an old version of the questionnaire. Thus, any researcher using these scores must always check the number of missing items per scale and set his/her own threshold for missingness. | + | * Even though all FFI items have been included in only part of the questionnaires, the FFI sum scores have been calculated for all domains. This has been decided because before adding the missing items, the questionnaire did already contain some FFI items. |
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===== Article ===== | ===== Article ===== | ||
- | * ...\\ | + | * [[https://doi.org/10.1016/j.clnu.2020.06.016| Schweren, L. J., Larsson, H., Vinke, P. C., Li, L., Kvalvik, L. G., Arias-Vasquez, A., ... & Hartman, C. A. (2021). Diet quality, stress and common mental health problems: A cohort study of 121,008 adults. Clinical Nutrition, 40(3), 901-906. https://doi.org/10.1016/j.clnu.2020.06.016]] \\ |
===== Variables ===== | ===== Variables ===== |