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Table 1 Item and category fit indices for self child-report in the KIDSCREEN-27

From: Item and response-category functioning of the Persian version of the KIDSCREEN-27: Rasch partial credit model

  Item indices Category fit indices
  Difficulty Infit Outfit Average measure, step calibration, infit, outfit
Physical well-being 1 2 3 4 5
1. how would you say your health is −0.42 1.01 1.01 −0.92, none, 1.52, 1.81 −0.35, -1.74, 1.05, 1.12 0.32, -0.77, 0.86, 0.81 1.15, 0.74, 0.97, 1.03 2.01, 1.71, 1.03, 1.02
2. Felt fit and well 0.12 1.12 1.09 −0.25, none, 1.87, 2.15 0.04, -1.17, 1.32, 1.43 0.33, -1.03, 0.82, 0.74 1.33, 0.37, 0.87, 0.97 2.22, 1.82, 0.97, 0.97
3. Been physically active 0.39 0.93 0.95 −0.58, none, 1.05, 1.05 −0.02, 1.04, 0.72, 0.65 0.74, -0.71, 1.01, 1.00 1.41, 0.60, 0.89, 0.95 2.20, 1.15, 0.95, 0.98
4. Been able to run well −0.10 0.87 0.87 −1.00, none, 0.90, 0.92 −0.38, -2.00, 0.66, 0.64 0.62, -0.41, 0.96, 0.89 1.30, 0.87, 0.83, 0.97 2.14, 1.54, 0.97, 0.98
5. Felt full of energy 0.00 1.04 1.05 −0.94, none, 1.16, 1.24 −0.44, -1.53, 0.86, 0.86 0.54, -1.54, 0.86, 0.93 1.52, 0.66, 0.86, 0.27 2.00, 2.41, 1.27, 1.21
Psychological well-being
1. Your life been enjoyable −0.34 0.85 0.87 −1.70, none, 0.69, 0.65 −0.70, -1.30, 0.65, 0.59 0.21, -1.18, 0.78, 0.71 1.04, 0.64 ,0.86, 1.13 1.81, 1.57, 1.05, 1.03
2. Been in a good mood −0.33 0.82 0.81 −1.77, none, 0.79, 0.79 −0.61, -2.18, 0.83, 0.80 0.24, -0.59, 0.80, 0.76 1.06, 0.53, 0.77, 0.73 2.12, 2.25, 0.88, 0.91
3. Had fun 0.02 1.22 1.25 −0.60, none, 1.79, 1.93 −0.26, -2.07, 1.12, 1.20 0.48, -0.64, 1.12, 1.18 1.17, 0.57, 1.17, 1.20 2.03, 2.14, 1.17, 1.13
4. Felt sad 0.35 0.93 0.95 −1.13, none, 1.04, 1.09 −0.37, -1.68, -0.97, 1.03 0.66, -0.97, 0.99, 1.03 1.26, 0.22, 0.96, 0.98 2.34, 2.44, 0.96, 0.97
5. Felt so bad that you didn’t want to do anything 0.20 1.14 1.13 −0.09, none, 1.41, 1.39 −0.25, -2.14, 0.91, 0.90 0.70, -0.70, 1.15, 1.12 1.23, 0.87, 1.15, 1.15 2.15, 1.97, 1.22, 1.20
6. Felt lonely 0.20 1.17 1.22 −0.69, none, 1.48, 1.68 −0.12, -0.90, 0.91, 0.95 0.57, -0.59, 1.11, 1.27 0.95, 0.50, 1.30, 1.12 1.94, 1.00, 1.07, 1.11
7. Been happy with the way you are −0.10 0.84 0.80 −1.26, none, 1.06, 1.21 −0.31, -1.14, 0.87, 0.80 0.17, -0.38, 0.69, 1.60 0.99, 0.18, 0.64, 0.54 2.04, 1.59, 0.90, 0.95
Autonomy and parent relation
1. Had enough time for yourself 0.41 1.11 1.08 −0.29, none, 1.06, 1.21 0.11, -1.77, 1.03, 1.03 0.66, -0.52, 1.02, 1.00 1.41, 0.70, 0.87, 0.88 1.98, 1.59, 1.26, 1.23
2. Been able to do thing 0.50 1.09 1.07 −0.31, none, 1.35, 1.33 0.14, -1.71, 0.96, 0.93 0.61, -0.61, 0.93, 0.85 1.56, 0.54, 0.77, 0.84 1.91, 1.78, 1.37, 1.32
3. Your parent had enough time for you −0.18 0.84 0.80 −1.04, none, 0.74, 0.69 −0.14, -0.97, 0.95, 0.89 0.22, -0.26, 0.76, 0.59 0.93, 0.12, 0.76, 0.78 1.73, 1.11, 0.91, 0.94
4. Your parent treated you fairly −0.77 0.83 0.76 −1.59, none, 0.70, 0.79 −0.57, -1.08, 0.87, 0.72 −0.05, -0.38, 0.76, 0.77 0.71, 0.38. 0.81, 0.77 1.53, 1.08, 0.91, 0.95
5. Been able to talk to your parent −0.10 0.97 1.05 −0.84, none, 0.96, 1.01 −0.21, -0.82, 0.85, 0.78 0.37, -0.49, 0.91, 0.92 1.11, 0.31, 0.94, 1.43 1.61, 1.00, 1.08, 1.07
6. Had enough money to do things as your friend 0.28 1.08 1.05 −0.52, none, 1.11, 1.12 0.05, -0.94, 0.98, 1.03 0.62, -0.48, 0.95, 0.92 1.21, 0.30, 0.88, 0.91 1.79, 1.12, 1.28, 1.20
7. Had enough money for your expenses −0.14 1.06 1.06 −0.67, none, 1.26, 1.55 −0.15, -1.02, 1.02, 1.17 0.38, -0.30, 0.93, 0.91 0.96, 0.32, 0.83, 0.79 1.67, 0.99, 1.14, 1.09
Social support and peers
1. Spent time with your friends 0.30 1.10 1.09 −0.91, none, 1.42, 1.46 −0.49, -2.25, 0.89, 0.89 0.53, -0.97, 0.98, 0.97 1.55, 0.55, 0.99, 1.02 2.33, 2.66, 1.33, 1.23
2. Had fun with your friends −0.20 0.83 0.83 −1.56, none, 0.96, 0.98 −0.81, -1.66, 0.74, 0.70 0.10, -1.03, 0.71, 0.65 1.24, 0.43, 0.71, 0.80 2.22, 2.26, 1.02, 1.00
3. You and your friends helped each other −0.53 0.96 0.94 −2.01, none, 0.70, 0.70 −0.86, -2.15, 0.88, 0.86 0.12, -1.04, 0.86, 0.83 1.15, 0.94, 0.85, 0.84 2.09, 2.24, 1.21, 1.18
4. Been able to rely on your friends −0.43 1.08 1.07 −0.95, none, 1.21, 1.18 −0.21, -1.92, 0.94, 0.92 0.60, -0.56, 1.00, 0.97 1.59, 0.56, 0.87, 0.96 2.29, 1.92, 1.34, 1.29
School environment
1. Been happy at school 0.27 1.05 1.03 −0.92, none, 1.01, 1.02 −0.08, -1.66, 1.10, 1.12 0.63, -1.29, 0.92, 0.88 1.55, 0.77, 1.03, 1.03 2.44, 2.18, 1.15, 1.11
2. Got on well at school 0.21 0.89 0.89 −0.97, none, 1.03, 1,03 −0.44, -1.87, 0.78, 0.77 0.62, -1.52, 0.82, 0.79 1.66, 1.06, 0.79, 0.83 2.55, 2.33, 1.02, 1,03
3. Been able to pay attention −0.09 0.94 0.92 −0.99, none, 1.14, 1.14 −0.36, -2.51, 0.96, 0.95 0.40, -1.02, 0.75, 0.71 1.54, 0.69, 0.91, 0.93 2.48, 2.83, 1.05, 1.03
4. Got along well with your teachers −0.39 1.09 1.18 −1.06, none, 1.15, 1.37 −0.50, -1.01, 0.92, 0.97 0.24, -0.75, 0.99, 1.10 1.13, 0.20, 0.97, 1.26 1.92, 1.57, 1.29, 1.18