Table 3 Item response probabilities for each item in different latent classes
From: Latent classes of posttraumatic stress disorder among survivors of the Bam Earthquake after 17 years
Question | Low class | Moderate class | Severe class | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Item options | Item options | Item options | |||||||||||||
1 | 2 | 3 | 4 | 5 | 1 | 2 | 3 | 4 | 5 | 1 | 2 | 3 | 4 | 5 | |
Question 1 | 0.03 | 0.80 | 0.17 | 0.00 | 0.00 | 0.00 | 0.30 | 0.65 | 0.05 | 0.00 | 0.00 | 0.09 | 0.69 | 0.19 | 0.03 |
Question 2 | 0.03 | 0.61 | 0.35 | 0.01 | 0.00 | 0.00 | 0.19 | 0.69 | 0.12 | 0.00 | 0.00 | 0.05 | 0.53 | 0.38 | 0.04 |
Question 3 | 0.08 | 0.49 | 0.42 | 0.01 | 0.00 | 0.00 | 0.15 | 0.45 | 0.40 | 0.00 | 0.00 | 0.04 | 0.31 | 0.56 | 0.09 |
Question 4 | 0.09 | 0.52 | 0.38 | 0.00 | 0.00 | 0.00 | 0.03 | 0.10 | 0.79 | 0.08 | 0.00 | 0.02 | 0.16 | 0.54 | 0.28 |
Question 5 | 0.13 | 0.60 | 0.27 | 0.00 | 0.00 | 0.01 | 0.06 | 0.51 | 0.42 | 0.00 | 0.00 | 0.01 | 0.34 | 0.55 | 0.10 |
Question 6 | 0.04 | 0.85 | 0.10 | 0.00 | 0.01 | 0.00 | 0.39 | 0.61 | 0.00 | 0.00 | 0.01 | 0.06 | 0.89 | 0.04 | 0.00 |
Question 7 | 0.06 | 0.69 | 0.25 | 0.00 | - | 0.00 | 0.31 | 0.68 | 0.01 | - | 0.01 | 0.08 | 0.65 | 0.26 | - |
Question 8 | 0.14 | 0.46 | 0.40 | 0.00 | - | 0.01 | 0.32 | 0.61 | 0.06 | - | 0.00 | 0.18 | 0.48 | 0.34 | - |
Question 9 | 0.15 | 0.53 | 0.32 | 0.00 | 0.00 | 0.00 | 0.24 | 0.65 | 0.10 | 0.01 | 0.00 | 0.05 | 0.41 | 0.53 | 0.01 |
Question 10 | 0.15 | 0.55 | 0.30 | 0.00 | 0.00 | 0.00 | 0.21 | 0.61 | 0.18 | 0.00 | 0.01 | 0.03 | 0.41 | 0.52 | 0.02 |
Question 11 | 0.14 | 0.60 | 0.26 | 0.00 | 0.00 | 0.00 | 0.18 | 0.51 | 0.31 | 0.00 | 0.00 | 0.03 | 0.39 | 0.52 | 0.06 |
Question 12 | 0.19 | 0.55 | 0.26 | 0.00 | 0.00 | 0.01 | 0.10 | 0.54 | 0.35 | 0.00 | 0.00 | 0.03 | 0.43 | 0.49 | 0.05 |
Question 13 | 0.13 | 0.62 | 0.25 | 0.00 | 0.00 | 0.00 | 0.05 | 0.26 | 0.66 | 0.03 | 0.00 | 0.02 | 0.35 | 0.53 | 0.10 |
Question 14 | 0.10 | 0.63 | 0.27 | 0.00 | 0.00 | 0.00 | 0.04 | 0.26 | 0.69 | 0.01 | 0.00 | 0.02 | 0.17 | 0.66 | 0.15 |
Question 15 | 0.18 | 0.61 | 0.21 | 0.00 | 0.00 | 0.00 | 0.07 | 0.78 | 0.14 | 0.01 | 0.00 | 0.02 | 0.62 | 0.35 | 0.01 |
Question 16 | 0.25 | 0.58 | 0.17 | 0.00 | 0.00 | 0.00 | 0.33 | 0.66 | 0.01 | 0.00 | 0.00 | 0.07 | 0.77 | 0.15 | 0.01 |
Question 17 | 0.18 | 0.69 | 0.13 | 0.00 | 0.00 | 0.01 | 0.41 | 0.58 | 0.00 | 0.00 | 0.00 | 0.30 | 0.60 | 0.08 | 0.02 |
Probability of latent class membership | 56.6% | 23.5% | 19.9% | ||||||||||||