CHAPTER 8 200 Phase 2: Waiting period There was an interval of two to six weeks before starting the intervention. In this period, parents videotaped the chosen activities of the child. Preferably, each activity was videotaped three times to gain insight into the performance stability of the activity and the child’s functioning. Phase 3: Intervention The OT developed the intervention based on videos of the activities, the GAS and the criterion (i.e., task performance) using the PRPP-Assessment. The PRPP-Intervention22 was conducted in a six-week ‘home-based video coaching program’ with a triple-action approach (figure 1)34: pediatric OTs coached the parents, who in turn taught the child how to learn the activities. Parents videotaped their interaction with the child during task performance, forming the basis for the weekly online consultations. The week after the last intervention session, parents videotaped the chosen activities for the last time. Phase 4: Post-intervention measurement Immediately after the six-week intervention, a post-intervention measurement was conducted by the researcher (M.L.), collecting data on the COPM, GAS and GRS. Parents (and children when possible ) and the treating OT were interviewed separately on their experiences with the intervention via a semi-structured interview. These interviews took about 15–25 minutes. Phase 5: Scoring the video material To collect the PRPP-Assessment scores, eight PRPP-Assessment-certified pediatric OTs scored the video material. One OT scored all the videos and set the procedural task analysis for the other OTs. Next, the seven other OTs scored the videos of one or two children, randomly assigned. All the OTs received the video material without knowing if it was made pre- or post-intervention. PRPP-Assessment The PRPP System of Task Analysis is a two-stage, criterion-referenced measuring instrument that uses task analysis methods to examine the effectiveness of cognitive information processing during the performance of daily activities. In general, prior to the assessment, the child/parent and the therapist agree on a meaningful task to be observed and when they will be satisfied with the task performance (the criterion). The outcome of the PRPP-Assessment represents the mastery of everyday activities and gives an analysis of the cognitive strategies used to gain that mastery score.
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