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Table 11 Known-Group Validity: Comparison of Perceived Health Risk Score for CC between Different Groups (Survey 2)

From: Development and validation of a new instrument to measure perceived risks associated with the use of tobacco and nicotine-containing products

Instrument Smoking Status Group n Mean (logits) SD t (df) p-value Cohen’s d
Differences between personal and general risk
PRI-P CS (all) 397 1.26 2.88 2.50 (785) 0.013 0.18
PRI-G CS (all) 390 1.77 2.88
PRI-P CS NIQ 194 0.93 2.96 1.21 (385) 0.227
PRI-G CS NIQ 193 1.29 2.93
PRI-P CS IQ 203 1.58 2.76 2.42 (398) 0.016 0.24
PRI-G CS IQ 197 2.25 2.76
Differences between current smokers and never smokers
PRI-P CS (all) 397 1.26 2.88 6.28 (579) <.001 0.53
NS 184 3.05 3.80
CS NIQ 194 0.93 2.96 6.08 (376) <.001 0.62
NS 184 3.05 3.80
CS IQ 203 1.58 2.76 4.39 (385) <.001 0.44
NS 184 3.05 3.80
PRI-G CS (all) 390 1.77 2.88 7.53 (580) <.001 0.68
NS 192 3.65 2.69
CS NIQ 193 1.29 2.93 8.22 (383) <.001 0.84
NS 192 3.65 2.69
CS IQ 197 2.25 2.76 5.06 (387) <.001 0.51
NS 192 3.65 2.69
Differences between CS IQ and CS NIQ
PRI-P CS IQ 203 1.58 2.76 2.28 (395) 0.023 0.23
CS NIQ 194 0.93 2.96
PRI-G CS IQ 197 2.25 2.76 3.33 (388) 0.001 0.34
CS NIQ 193 1.29 2.93
  1. CS IQ current smokers with intention to quit, CS NIQ current smokers with no intention to quit, FS former smokers, NS never smokers, PRI-P Perceived Risk Instrument-Personal Risk, PRI-G Perceived Risk Instrument-General Risk, SD standard deviation. Cohen’s d indicated for p-values < 0.05