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https://ir.cnu.edu.tw/handle/310902800/30933
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| 標題: | Estimating Skin Cancer Risk: Evaluating Mobile Computer-Adaptive Testing |
| 作者: | Djaja, Ngadiman
Janda, Monika
Olsen, Catherine M.
Whiteman, David C.
Chien, Tsair-Wei |
| 貢獻者: | Queensland Univ Technol, Inst Hlth & Biomed Innovat, Sch Publ Hlth & Social Work
Queensland Univ Technol, Inst Hlth & Biomed Innovat, Inst Hlth & Biomed Innovat
Natl Hlth & Med Res Council, Ctr Res Excellence Sun & Hlth CRESH
QIMR Berghofer Med Res Inst
Chi Mei Med Ctr, Res Dept
Chia Nan Univ Pharm & Sci, Dept Hosp & Hlth Care Adm |
| 關鍵字: | computer adaptive testing
skin cancer risk scale
non adaptive test
Rasch analysis
partial credit model |
| 日期: | 2016-01 |
| 上傳時間: | 2018-01-18 11:38:13 (UTC+8) |
| 出版者: | Jmir Publications, Inc |
| 摘要: | Background: Response burden is a major detriment to questionnaire completion rates. Computer adaptive testing may offer advantages over non-adaptive testing, including reduction of numbers of items required for precise measurement. Objective: Our aim was to compare the efficiency of non-adaptive (NAT) and computer adaptive testing (CAT) facilitated by Partial Credit Model (PCM)-derived calibration to estimate skin cancer risk. Methods: We used a random sample from a population-based Australian cohort study of skin cancer risk (N=43,794). All 30 items of the skin cancer risk scale were calibrated with the Rasch PCM. A total of 1000 cases generated following a normal distribution (mean [SD] 0 [1]) were simulated using three Rasch models with three fixed-item (dichotomous, rating scale, and partial credit) scenarios, respectively. We calculated the comparative efficiency and precision of CAT and NAT (shortening of questionnaire length and the count difference number ratio less than 5% using independent t tests). Results: We found that use of CAT led to smaller person standard error of the estimated measure than NAT, with substantially higher efficiency but no loss of precision, reducing response burden by 48%, 66%, and 66% for dichotomous, Rating Scale Model, and PCM models, respectively. Conclusions: CAT-based administrations of the skin cancer risk scale could substantially reduce participant burden without compromising measurement precision. A mobile computer adaptive test was developed to help people efficiently assess their skin cancer risk. |
| 關聯: | Journal of Medical Internet Research, v.18 n.1, e22 |
| 顯示於類別: | [醫務管理系(所)] 期刊論文
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