The sum of all fears: Comparing networks based on symptom sum-scores.
Sign Up to like & getrecommendations! Published in 2021 at "Psychological methods"
DOI: 10.1037/met0000418
Abstract: Researchers are often interested in comparing statistical network models estimated from groups that are defined by the sum-score of the modeled variables. A prominent example is an analysis that compares networks of individuals with and… read more here.
Keywords: bias; network models; sum scores; network ... See more keywords
On Dimensionality, Measurement Invariance, and Suitability of Sum Scores for the PHQ-9 and the GAD-7.
Sign Up to like & getrecommendations! Published in 2020 at "Assessment"
DOI: 10.1177/1073191120976863
Abstract: In psychiatry, severity of mental health conditions and their change over time are usually measured via sum scores of items on psychometric scales. However, inferences from such scores can be biased if psychometric properties such… read more here.
Keywords: sum scores; dimensionality; measurement invariance;