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Table 4 Discrimination and difficulty abilities of A-BDDQ-AS

From: Arabic translation, cultural adaptation, and validation of the BDDQ-AS for rhinoplasty patients

 

Estimate

95% CI

p

Question 1

   

Discrimination

3.073

1.11–5.037

0.002*

Difficulty

0.81

0.483–1.137

< 0.001**

Question 2

   

Discrimination

4.467

0.8–8.133

0.017*

Difficulty

0.463

0.201–0.725

0.001**

Question 3

   

Discrimination

3.999

1.1–6.9

0.007*

Difficulty ≥ 2

0.171

− 0.104–0.446

0.222

Question 4

   

Discrimination

4.163

1.092–7.234

0.008*

Difficulty ≥ 2

0.618

0.338–0.898

< 0.001**

Question 5

   

Discrimination

8.372

− 4.458–21.2

0.201

Difficulty ≥ 2

0.593

0.343–0.843

< 0.001**

Question 6

   

Discrimination

2.961

0.878–5.043

0.005*

Difficulty ≥ 2

1.254

0.813–1.696

 < 0.001**

Question 7

   

Discrimination

2.336

0.94–3.772

0.001**

Difficulty

1.24

0.775–1.704

 < 0.001**

  1. Based on the Hybrid Item Response Theory (IRT)
  2. CI, confidence interval
  3. *p < 0.05 statistical significance; **p ≤ 0.001 high statistical significance
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Journal of Otolaryngology - Head & Neck Surgery

ISSN: 1916-0216

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