Normative Reference Values, Reliability, and Item-Level Symptom Endorsement for the PROMIS® v2.0 Cognitive Function-Short Forms 4a, 6a and 8a

Abstract

Objective Reliable, valid, and precise measures of perceived cognitive functioning are useful in clinical practice and research. We present normative data, internal consistency statistics, item-level symptom endorsement, and the base rates of symptoms endorsed for the PROMIS® v2.0 Cognitive Function-Short Forms. Method The four-, six -, and eight-item short form of the PROMIS® v2.0 Cognitive Function scale assess subjective cognitive functioning. We stratified the normative sample from the U.S. general population (n = 1,009; 51.1% women) by gender, education, health status, self-reported history of a depression or anxiety diagnosis, and recent mental health symptoms (i.e., feeling anxious or depressed in the past week) and examined cognitive symptom reporting. Results Internal consistency was measured using Cronbach’s alpha and ranged from .85 to .95 for all three forms, across all groups. Mann–Whitney U test comparisons showed that individuals with past or present mental health difficulties scored significantly lower (i.e., worse perceived cognitive functioning) on the self-report questionnaires, particularly the eight-item form (history of depression, men: p < .001, Cohen’s d = 1.07; women: p < .001, d = .99; history of anxiety, men: p < .001, d = 1.06; women: p < .001, d = .98; and current mental health symptoms, men: p < .001, d = 1.38; women: p < .001, d = 1.19). Conclusions All three short forms of the PROMIS® v2.0 Cognitive Function scale had strong internal consistency reliability, supporting its use as a reliable measure of subjective cognitive functioning. The subgroup differences in perceived cognitive functioning supported the relationship between emotional and cognitive well-being. This study is the first to present normative values and base rates for several community-dwelling subgroups, allowing for precise interpretation of these measures in clinical practice and research.

Psychometric properties of the PROMIS® v2.0 Cognitive Function Short Form (SF-8) in a Mexican cancer population

“…Regarding the CFA, the results corroborated the single-factor structure, with high factor loadings (between 0.77 and 0.92) and excellent fit indices. This was similar to the results found in a previous study, where the authors reported, in particular, a CFI = 0.995 and RMSEA = 0.050, in addition to standardized factor loadings of between 0.94 and 0.97 42 .…”

Association of Initial SARS-CoV-2 Test Positivity With Patient-Reported Well-being 3 Months After a Symptomatic Illness

“…15 The PROMIS instruments use T score measurement, in which a score of 50 represents the mean score of a reference population (ie, the US general population), with an SD of 10. 11 , 16 For PROMIS measures, higher scores correspond to a greater degree of the outcome being measured (eg, greater fatigue). The T score was used to measure outcomes for 7 of the PROMIS-29 subscales (physical function, anxiety, depression, fatigue, social participation, 1 sleep disturbance, and pain interference) and the PROMIS SF-CF 8a survey.…”

Propiedades psicométricas del instrumento PROMIS® v2.0 Función Cognitiva Forma Breve (SF-8) en población oncológica mexicana

“…En cuanto al AFC, los resultados corroboraron la estructura unifactorial, con cargas factoriales altas (entre 0.77 y 0.92) e índices de ajuste excelentes. Lo anterior fue similar a los resultados hallados en un estudio previo, donde los autores reportaron, en particular, un CFI = 0.995 y RMSEA = 0.050, además de cargas factoriales estandarizadas entre 0.94 y 0.97 42 .…”