Personality sum scores (NEO)

Researchers from the University Medical Center Groningen and the Amsterdam University Medical Center calculated scores for several facets and five factor inventory (FFI) domains of the Personality (NEO) from participants aged 18-65 at 1A questionnaire 2. Lifelines combined these calculations. (sections: mental health (Personality (NEO)) and secondary & linked variables)

The personality sum scores (NEO) can be requested in the Lifelines catalogue.

Background

In Lifelines, selected items of the NEO-PI-R were administered. Initially, 64 items (8 items belonging to 8 personality facets) were administered. At some point during the data collection process (approximately 80% of the sample had already taken part at that point), the following specific items were added:

All items of the anxiety and depression facets, such that now we have a detailed assessment of the entire neuroticism domain, including all individual facet scores, a total score, and the FFI estimation of the total score.
All missing FFI items for the conscientiousness domain, such that now we have an FFI estimation of the conscientiousness domain total score
All missing FFI items for the extraversion domain, such that now we have an FFI estimation of the extraversion domain total score. Unfortunately, by mistake, one FFI item of the Extraversion domain was not included in the updated questionnaire.

Calculation sum scores

The calculation of the personality sum scores consisted of two steps. The first being data preparation and the second is the calculation of the actual sum scores of the different facets and the domains.

Preparation

First, the variables for each facet and FFI domain were named according to their facet/domain (e.g. C1-C8 for the competence facet). Additionally, some items of the questionnaire were reversed to calculate an appropriate sum score. A detailed overview of the variables per facet/domain and the items that are reversed can be found in the syntax on the Lifelines workspace. Finally, variables have been created indicating the number of valid answers per facet and domain.

Sum scores

Because different researchers might find a different number of missing values acceptable, 3 different sum scores have been calculated.

A sum score for all participants with complete data (no missing items) → variable name neocomplete_….
A sum score for the available items for all participants → variable name neovalid_…
A sum score for all participants with at least one valid item, with missing items imputed to the mean of all non-missing items → variable name neoimputed_…

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

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.
The FFI item extraversion has one missing question. As a result, no sum score item number 1 has been calculated (as there is always at least one missing question).
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.

Article

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

Label English	Label Dutch	Code	Variable	Assessment	Age
number of valid items within competence facet	aantal valide items binnen competence facet	neonumber_competence_adu_c_1	valid_C	1A	18+
number of valid items within anger-hostility facet	aantal valide items binnen anger-hostility facet	neonumber_hostility_adu_c_1	valid_A	1A	18+
number of valid items within self-consciousness facet	aantal valide items binnen self-consciousness facet	neonumber_selfconsciousness_adu_c_1	valid_SC	1A	18+
number of valid items within impulsivity facet	aantal valide items binnen impulsivity facet	neonumber_impulsivity_adu_c_1	valid_I	1A	18+
number of valid items within excitement-seeking facet	aantal valide items binnen excitement-seeking facet	neonumber_excitement_adu_c_1	valid_E	1A	18+
number of valid items within self-discipline facet	aantal valide items binnen self-discipline facet	neonumber_selfdiscipline_adu_c_1	valid_SD	1A	18+
number of valid items within vulnerability facet	aantal valide items binnen vulnerability facet	neonumber_vulnerability_adu_c_1	valid_V	1A	18+
number of valid items within deliberation facet	aantal valide items binnen deliberation facet	neonumber_deliberation_adu_c_1	valid_D	1A	18+
number of valid items within anxiety facet	aantal valide items binnen anxiety facet	neonumber_anxiety_adu_c_1	valid_ANX	1A	18+
number of valid items within depression facet	aantal valide items binnen depression facet	neonumber_depression_adu_c_1	valid_DEP	1A	18+
number of valid items within neuroticism domain	aantal valide items binnen neuroticism domein	neonumber_neuroticism_adu_c_1	valid_NEURO	1A	18+
number of valid items within conscientiousness domain	aantal valide items binnen conscientiousness domein	neonumber_conscientiousness_adu_c_1	valid_CONSC	1A	18+
number of valid items within extraversion domain	aantal valide items binnen extraversion domein	neonumber_extraversion_adu_c_1	valid_EXTRA	1A	18+
sum of complete competence facet (no missings)	som van complete competence facet (geen missings)	neocomplete_competence_adu_c_1	SUM1_C	1A	18+
sum of complete anger-hostility facet (no missings)	som van complete anger-hostility facet (geen missings)	neocomplete_hostility_adu_c_1	SUM1_A	1A	18+
sum of complete self-consciousness facet (no missings)	som van complete self-consciousness facet (geen missings)	neocomplete_selfconsciousness_adu_c_1	SUM1_SC	1A	18+
sum of complete impulsivity facet (no missings)	som van complete impulsivity facet (geen missings)	neocomplete_impulsivity_adu_c_1	SUM1_I	1A	18+
sum of complete excitement-seeking facet (no missings)	som van complete excitement-seeking facet (geen missings)	neocomplete_excitement_adu_c_1	SUM1_E	1A	18+
sum of complete self-discipline facet (no missings)	som van complete self-discipline facet (geen missings)	neocomplete_selfdiscipline_adu_c_1	SUM1_SD	1A	18+
sum of complete vulnerability facet (no missings)	som van complete vulnerability facet (geen missings)	neocomplete_vulnerability_adu_c_1	SUM1_V	1A	18+
sum of complete deliberation facet (no missings)	som van complete deliberation facet (geen missings)	neocomplete_deliberation_adu_c_1	SUM1_D	1A	18+
sum of complete anxiety facet (no missings)	som van complete anxiety facet (geen missings)	neocomplete_anxiety_adu_c_1	SUM1_ANX	1A	18+
sum of complete depression facet (no missings)	som van complete depression facet (geen missings)	neocomplete_depression_adu_c_1	SUM1_DEP	1A	18+
sum of complete neuroticism domain (no missings)	som van complete neuroticism domein (geen missings)	neocomplete_neuroticism_adu_c_1	SUM1_NEURO	1A	18+
sum of complete conscientiousness domain (no missings)	som van complete conscientiousness domein (geen missings)	neocomplete_conscientiousness_adu_c_1	SUM1_CONSC	1A	18+
sum of all valid items within competence facet	som van alle valide items binnen competence facet	neovalid_competence_adu_c_1	SUM2_C	1A	18+
sum of all valid items within anger-hostility facet	som van alle valide items binnen anger-hostility facet	neovalid_hostility_adu_c_1	SUM2_A	1A	18+
sum of all valid items within self-consciousness facet	som van alle valide items binnen self-consciousness facet	neovalid_selfconsciousness_adu_c_1	SUM2_SC	1A	18+
sum of all valid items within impulsivity facet	som van alle valide items binnen impulsivity facet	neovalid_impulsivity_adu_c_1	SUM2_I	1A	18+
sum of all valid items within excitement-seeking facet	som van alle valide items binnen excitement-seeking facet	neovalid_excitement_adu_c_1	SUM2_E	1A	18+
sum of all valid items within self-discipline facet	som van alle valide items binnen self-discipline facet	neovalid_selfdiscipline_adu_c_1	SUM2_SD	1A	18+
sum of all valid items within vulnerability facet	som van alle valide items binnen vulnerability facet	neovalid_vulnerability_adu_c_1	SUM2_V	1A	18+
sum of all valid items within deliberation facet	som van alle valide items binnen deliberation facet	neovalid_deliberation_adu_c_1	SUM2_D	1A	18+
sum of all valid items within anxiety facet	som van alle valide items binnen anxiety facet	neovalid_anxiety_adu_c_1	SUM2_ANX	1A	18+
sum of all valid items within depression facet	som van alle valide items binnen depression facet	neovalid_depression_adu_c_1	SUM2_DEP	1A	18+
sum of all valid items within neuroticism domain	som van alle valide items binnen neuroticism domein	neovalid_neuroticism_adu_c_1	SUM2_NEURO	1A	18+
sum of all valid items within conscientiousness domain	som van alle valide items binnen conscientiousness domein	neovalid_conscientiousness_adu_c_1	SUM2_CONSC	1A	18+
sum of all valid items within extraversion domain	som van alle valide items binnen extraversion domein	neovalid_extraversion_adu_c_1	SUM2_EXTRA	1A	18+
sum of competence facet (missing items imputed)	som van competence facet (missende waarden geimputeerd)	neoimputed_competence_adu_c_1	SUM3_C	1A	18+
sum of anger-hostility facet (missing items imputed)	som van anger-hostility facet (missende waarden geimputeerd)	neoimputed_hostility_adu_c_1	SUM3_A	1A	18+
sum of self-consciousness facet (missing items imputed)	som van self-consciousness facet (missende waarden geimputeerd)	neoimputed_selfconsciousness_adu_c_1	SUM3_SC	1A	18+
sum of impulsivity facet (missing items imputed)	som van impulsivity facet (missende waarden geimputeerd)	neoimputed_impulsivity_adu_c_1	SUM3_I	1A	18+
sum of excitement-seeking facet (missing items imputed)	som van excitement-seeking facet (missende waarden geimputeerd)	neoimputed_excitement_adu_c_1	SUM3_E	1A	18+
sum of self-discipline facet (missing items imputed)	som van self-discipline facet (missende waarden geimputeerd)	neoimputed_selfdiscipline_adu_c_1	SUM3_SD	1A	18+
sum of vulnerability facet (missing items imputed)	som van vulnerability facet (missende waarden geimputeerd)	neoimputed_vulnerability_adu_c_1	SUM3_V	1A	18+
sum of deliberation facet (missing items imputed)	som van deliberation facet (missende waarden geimputeerd)	neoimputed_deliberation_adu_c_1	SUM3_D	1A	18+
sum of anxiety facet (missing items imputed)	som van anxiety facet (missende waarden geimputeerd)	neoimputed_anxiety_adu_c_1	SUM3_ANX	1A	18+
sum of depression facet (missing items imputed)	som van depression facet (missende waarden geimputeerd)	neoimputed_depression_adu_c_1	SUM3_DEP	1A	18+
sum of neuroticism domain (missing items imputed)	som van neuroticism domein (missende waarden geimputeerd)	neoimputed_neuroticism_adu_c_1	SUM3_NEURO	1A	18+
sum of conscientiousness domain (missing items imputed)	som van conscientiousness domein (missende waarden geimputeerd)	neoimputed_conscientiousness_adu_c_1	SUM3_CONSC	1A	18+
sum of extraversion domain (missing items imputed)	som van extraversion domein (missende waarden geimputeerd)	neoimputed_extraversion_adu_c_1	SUM3_EXTRA	1A	18+

Table of Contents