Validation d'un instrument de mesure pour évaluer l'accès à l'ordinateur chez les personnes ayant une déficience physique

Abstract

The aim of this study was to develop an instrument to measure performance in computer tasks for persons with physical impairments. The objectives were to assure the content validity and the internal consistency of the test as well as the reliability of each task. The first step was to determine the mouse and keyboard actions necessary to use a computer. Resulting from these actions, 15 standardized computer tasks were designed as part of the test. To measure reliability and internal consistency, the test was administered twice to 19 persons without disabilities and 17 persons with disabilities. Reliability was established for most of the tasks and the test showed good internal consistency. This instrument could contribute to the improvement of occupational therapy interventions regarding computer access.

Validation of the Revised Child Version of the Assessment of Computer Task Performance

“…Intemal consistency of the tasks for children 10 and 11 years of age was less than the criterion value (alpha coefficient = 0.80), and coefficients previously obtained for scores of adults (Dumont, et al 2000;Dumont, et al 2002). The tasks for children 10 and 11 years of age were selected from the adult version of the test and the number of keyboard tasks was reduced to five.…”

“…The largest developmental gain occurred between 5 and 6 years of age. Comparison of the mean number of seconds to complete keyboard and mouse tasks between children 10 and 11 years old in this study and adults from our previous studies (Dumont & Dionne, 2000;Dumont et al, 2002) is presented in Table 6. The mean time the children took to complete the keyboard tasks is approaching the mean scores of the adults.…”

“…When data from previous studies (Dumont & Dionne, 2000;Dumont et al, 2002) are combined with data from this study, it is possible to observe the development of the task writing the alphabet as illustrated in Figure 1. The curve is approaching a parabola with an asymptote situated at approximately 12 seconds.…”

“…The Assessment of Computer Task Feiformance was developed in response to the need for an evidence-based approach to decision making (Dumont & Dionne, 2000;Dumont et al, 2002Vincent et al, 2003). The Assessment of Computer Task Peiformance is intended to identify areas of strength and need in use of a computer, evaluate the efticiency of different assistive devices, and evaluate progress after a training period.…”

“…The test has been translated into Chinese (child version), Hebrew and Dutch (adult and child versions). Both the French and English adult versions have good psychometric properties (Dumont & Dionne, 2000;Dumont 2002). Reliability and validity of both the English and French child versions indicate that development is not complete.…”