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Table 5 Percentile ranks of TESS scores and corresponding stanine values

From: Identifying low test-taking effort during low-stakes tests with the new Test-taking Effort Short Scale (TESS) – development and psychometrics

TESS score N Percentile rank Stanine Interpretation
1 157 11.4 1, 2 Low TTE
1.33 55 15.4 3  
1.67 67 20.3 3  
2 95 27.2 4  
2.33 88 33.6 4  
2.67 119 42.3 5  
3 141 52.6 5  
3.33 157 64 6  
3.67 136 73.9 6  
4 144 84.4 7  
4.33 81 90.3 8 High TTE
4.67 60 94.7 8 High TTE
5 73 100 9 High TTE
  1. TTE test-taking effort