Grit: The Power of Passion and Perseverance · chapter 4 · member edition

How Gritty Are You?

So what

The Grit Scale is psychometrically broken. Its ‘passion’ subscale does not predict outcomes or correlate with actual passion. Its ‘perseverance’ subscale works – but is just conscientiousness. If you must use a personality measure, use a validated Big Five instrument instead.

Verdict

SignificantBS

Claims checked in this chapter (8)

contested⚠ re-audit pending
The Grit Scale reliably measures a single coherent construct of 'passion and perseverance for long-term goals' composed of two correlated factors.
needs context⚠ re-audit pending
Grit is a distinct personality trait from Big Five conscientiousness.
needs context⚠ re-audit pending
The Short Grit Scale (Grit-S) has a test-retest reliability of r = 0.68 over a one-year interval and internal consistency (Cronbach's alpha) between 0.73 and 0.83.
contested⚠ re-audit pending
Grit is distinct from conscientiousness because it specifically captures passion and perseverance for long-term goals, while conscientiousness is a broader personality trait.
needs context⚠ re-audit pending
The Grit Scale has two distinct factors -- Consistency of Interest and Perseverance of Effort -- that together capture the full construct of grit.
contested⚠ re-audit pending
Grit scores increase with age, with older adults consistently scoring higher on the Grit Scale than younger adults.
needs context⚠ re-audit pending
Grit is heritable but not fixed -- approximately 37-48% of variation in grit is explained by genetics, leaving substantial room for environmental influence.
contested⚠ re-audit pending
The Grit Scale can be self-administered and scores are not significantly inflated by social desirability bias.