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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
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