An Investigation of the Test-Retest Reliability of the miniPXI
summary
Researchers recruit 100 participants on Prolific (≥98% approval, €11/hr) to play four short browser games (15–20 min) and repeat measures after a 3-week gap. The miniPXI shows poor to moderate test-retest reliability, with ICC 0.305 for Immersion while the single enjoyment item yields the highest ICC. Established multi-item measures (PXI, PENS, GEQ, AttrakDiff) show moderate-to-good reliability, and NPS demonstrates moderate-to-good repeatability, suggesting single-item miniPXI limits for longitudinal, complex PX dimensions.
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