How reliable are Glimpse scores over time?

Glimpse assessments show exceptionally high test-retest reliability. 73% of Glimpse traits achieve "excellent" stability (ICC > 0.74), with an average ICC of 0.77 across large samples, outperforming both academic and commercial benchmarks.

Glimpse assessments show exceptionally high test-retest reliability, outperforming both academic and commercial benchmarks.

Using Intra-class Correlation Coefficients (ICCs), 73% of Glimpse traits achieve "Excellent" stability (ICC > 0.74), with an average ICC of 0.77 across large samples (avg. N = 207).

By comparison:

Academic benchmarks report 30% excellent, with average ICC = 0.62 (Enkavi et al., 2019).
Commercial tools average ICC = 0.66, with only 18% rated excellent.

These results confirm that Glimpse offers industry-leading measurement stability, making it well-suited for critical talent decisions.

These overall results are supported by test-retest data for individual traits, confirming that Glimpse assessments maintain stability over time.

References

Bakun-Emesh, T., Garbi, D., Kaplan, A., Zelicha, H., Yaskolka Meir, A., Tsaban, G., Rinott, E., & Meiran, N. (2022). Retest reliability of integrated speed–accuracy measures. Assessment, 29(4), 717–730.

Cicchetti, D. V. (1994). Guidelines, criteria, and rules of thumb for evaluating normed and standardized assessment instruments in psychology. Psychological Assessment, 6(4), 284.

Enkavi, A. Z., Eisenberg, I. W., Bissett, P. G., Mazza, G. L., MacKinnon, D. P., Marsch, L. A., & Poldrack, R. A. (2019). Large-scale analysis of test–retest reliabilities of self-regulation measures. Proceedings of the National Academy of Sciences, 116(12), 5472–5477.

This article also answers

References