Table 5.

Interpretation of percentiles

Percentile (range)	z (range)	Interpretation	Satisfaction	Ability	Strategy
					Total	Internal	External
≥97.7	≥2	Very high	≥71	≥76	≥48	≥25	≥26
93.3–97.6	1.5 to 1.9	High	70	73–75	43–47	21–24	24–25
84.1–93.2	1 to 1.4	Above average	66–69	69–72	36–42	17–20	22–23
16.0–84.0	− 0.9 to 0.9	Average	43–65	49–68	17–35	5–16	11–21
6.8–15.9	− 1.4 to − 1.0	Below average	33–42	42–48	12–16	3–4	9–10
2.4–6.7	− 1.9 to − 1.5	Low	27–32	37–41	8–11	1–2	6–8
≤2.3	≤− 2	Very low	≤26	≤36	≤7	0	≤5