Table A2.
Item Response Theory Item Parameters for the 42-Item PROMIS Pediatric Life Satisfaction Item Bank, Parent-Proxy Edition, and Short Form Item Assignment.
| Item stem | Short Forms | Item Discrimination | Item Thresholds | |||
|---|---|---|---|---|---|---|
| a | b1 | b2 | b3 | b4 | ||
| My child’s life was ideal. | 3.16 | −2.27 | −1.71 | −0.84 | 0.29 | |
| My child’s life was the best. | SF8a | 3.89 | −2.30 | −1.78 | −0.94 | 0.15 |
| My child’s life was outstanding. | SF8a | 3.76 | −2.32 | −1.67 | −0.88 | 0.16 |
| My child’s life was excellent. | 3.09 | −2.57 | −1.92 | −1.15 | −0.11 | |
| My child’s life was great. | SF8a | 4.69 | −2.48 | −1.80 | −1.01 | −0.05 |
| My child’s life was good. | 4.98 | −2.77 | −2.16 | −1.41 | −0.31 | |
| My child’s life was going very well. | 5.35 | −2.47 | −2.01 | −1.30 | −0.31 | |
| My child’s life was just right. | 3.23 | −2.52 | −1.97 | −1.08 | 0.00 | |
| The conditions of my child’s life were excellent. | 3.41 | −2.42 | −1.84 | −1.09 | −0.03 | |
| My child’s life situation was excellent. | 2.71 | −2.77 | −2.09 | −1.23 | −0.09 | |
| My child was happy with the way things were. | 3.66 | −2.24 | −1.80 | −1.09 | 0.09 | |
| My child had what he/she wanted in life. | SF4a, SF8a, SF8b | 2.89 | −2.58 | −1.96 | −1.04 | 0.12 |
| My child had what he/she needed in life. | 1.98 | −3.32 | −2.76 | −1.67 | −0.45 | |
| My child got the things he/she wanted in life. | 2.36 | −3.08 | −2.12 | −1.02 | 0.23 | |
| My child felt that his/her life was better than most kids’ lives. | 2.29 | −2.31 | −1.71 | −0.70 | 0.43 | |
| My child enjoyed his/her life more than most kids enjoyed their lives. | 2.47 | −2.46 | −1.79 | −0.88 | 0.23 | |
| My child felt he/she lived as well as other kids. | 3.28 | −2.45 | −1.92 | −1.08 | −0.02 | |
| My child’s life was as good as most kids’ lives. | 2.29 | −3.02 | −2.40 | −1.46 | −0.34 | |
| My child was satisfied with the friends he/she has. | SF8b | 2.34 | −2.95 | −2.18 | −1.35 | −0.24 |
| My child was happy with his/her social life. | 2.74 | −2.74 | −1.93 | −1.15 | −0.15 | |
| My child was happy with his/her family life. | SF8b | 3.89 | −2.56 | −1.91 | −1.28 | −0.30 |
| My child was happy with his/her life at school. | 2.48 | −2.64 | −1.89 | −1.08 | 0.02 | |
| My child was happy with his/her life at home. | 3.82 | −2.44 | −1.98 | −1.25 | −0.23 | |
| My child was happy with life in his/her neighborhood. | SF8b | 2.29 | −2.68 | −1.96 | −1.04 | −0.06 |
| My child was happy with life in his/her community. | 3.54 | −2.59 | −1.99 | −1.10 | −0.02 | |
| My child was satisfied with his/her free time. | 2.82 | −2.78 | −1.99 | −1.18 | −0.05 | |
| My child was satisfied with his/her skills and talents. | SF8b | 2.29 | −2.85 | −2.16 | −1.30 | −0.08 |
| My child was satisfied with his/her life. | SF4a, SF8a, SF8b | 3.85 | −2.34 | −1.95 | −1.26 | −0.26 |
| My child felt extremely positive about his/her life. | 4.80 | −2.27 | −1.63 | −0.95 | −0.04 | |
| My child was happy with his/her life. | SF4a, SF8a, SF8b | 4.98 | −2.41 | −1.88 | −1.23 | −0.30 |
| My child felt very good about his/her life. | 6.35 | −2.38 | −1.85 | −1.23 | −0.28 | |
| My child felt good about his/her life. | 5.10 | −2.39 | −1.93 | −1.20 | −0.18 | |
| My child had a good life. | SF4a, SF8a, SF8b | 4.32 | −2.64 | −2.28 | −1.54 | −0.54 |
| My child felt positive about his/her life. | 4.96 | −2.32 | −1.90 | −1.20 | −0.23 | |
| My child had fun. | 4.02 | −2.62 | −2.09 | −1.38 | −0.32 | |
| My child had a lot of fun. | 3.68 | −2.70 | −2.04 | −1.30 | −0.31 | |
| My child enjoyed his/her life. | SF8b | 4.70 | −2.60 | −1.95 | −1.25 | −0.24 |
| My child liked the way he/she lived his/her life. | 5.20 | −2.51 | −1.98 | −1.18 | −0.11 | |
| My child’s life was worthwhile. | 2.15 | −3.62 | −2.87 | −2.01 | −0.84 | |
| My child’s life went well. | 4.82 | −2.85 | −2.18 | −1.38 | −0.32 | |
| My child felt he/she lived his/her life well. | 3.26 | −2.68 | −2.01 | −1.25 | −0.15 | |
| My child was satisfied with his/her life in general. | 4.88 | −2.51 | −1.98 | −1.29 | −0.33 | |
Note: SF4a: 4-item life satisfaction short form; SF8a: 8-item life satisfaction short form that includes the 4-item form and 4 additional global life satisfaction items; and, SF8b: 8-item life satisfaction short form that includes the 4-item form and 4 additional context-specific life satisfaction items.