Table 8 Distribution of Effect-Level Classifications Based on Criteria for Each Indicator^{1) 2)} (k =111)

Comparison	Low/No Effect (Level 1)	Medium (Level 2)	High (Level 3)	Very High/Large Effect (Level 4)
PND	6(5.4)3)	2(1.8)	8(7.2)	95(85.6)
IRD	3(2.7)	1(0.9)	2(1.8)	105(94.6)
Tau-U	3(2.7)	10(9.0)4)		98(88.3)

Effect-level classifications for PND, IRD, and Tau-U were determined according to the criteria reported in previous studies for each Indicator
Four-level criteria were applied to PND and IRD, whereas three-level criteria were applied to Tau-U
Unit: n(%)
The Tau-U range of .65–.93 was presented as a medium-to-high effect range, corresponding to Levels 2 and 3