Grit: The Power of Passion and Perseverance · chapter 4 · id grit-c4-05-the-grit-scale-has-two-distinc
“The Grit Scale has two distinct factors -- Consistency of Interest and Perseverance of Effort -- that together capture the full construct of grit.”
TRUE, BUTconfidence: medium⚠ extracted by pipeline, re-audit pending
Receipts
Duckworth & Quinn (2009), JPA - Grit-S validationsource alive
The Grit-S retains the 2-factor structure of the original scale: consistency of interest and perseverance of effort.
PMC (2021) - Psychometric evaluation of the Short Grit Scalesource alive
The two-factor model of grit showed acceptable fit in confirmatory factor analysis, but the utility of combining the two subscales into a single grit score is questionable.
Crede et al. (2017), JPSP meta-analysissource alive
The perseverance of effort facet drives nearly all of grit's predictive validity. The consistency of interest subscale adds almost nothing.
This claim is a stable, citable object. If you can falsify a verdict, tell us. Corrections are loud here.