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Social Networks Measure

The Social Networks Measure (SNM) was developed to examine possible changes in the size and composition of the social networks of participants.

Interpersonal Violence Interview

The Interpersonal Violence Interview (IVI) was developed by project researchers, since a review of the literature found no evidence-based measure. A modified Delphi Technique was used to develop a 30-item questionnaire to measure the incidence of interpersonal violence among adults with intellectual and related developmental disabilities.

Process Evaluation Model

The Process Evaluation Model (PEM) and methods used in this study are based on those developed for a Robert Wood Johnson Foundation (RWJF) National Program Office (NPO). The primary objective of a process evaluation was to document specific levels of exposure to the core procedures (Pn) of the FDP delivered by community agency facilitators. Data for this process evaluation metric document the degree of fidelity of program delivery for each site and all sites. It is an excellent method to routinely monitor and give feedback to program leadership and staff on a weekly, monthly, quarterly, and annual basis. It can also be used to compare rates at any location, or for any geographical area for a city-wide, system-wide, or state-wide HP-DP program for any target population and problem.

Exposure rates to the FDP were documented weekly to monitor the implementation of procedures by site. Facilitators provided detailed information about the number of participants exposed to each procedure and the amount of content delivered at each session through online surveys. The PII documented the exposure level of 23 FDP procedures: baseline measures, sessions 1-20, post-test measures, and 10-week post-test. In this case, PII = (P1-Index + P2-Index ... + P23-Index)/23. These data also document the performance levels of facilitators implementing the FDP. Individual implementation indices of > .90 and an overall PII > .90 provide empirical data that a high level of implementation success was achieved.

Data were aggregated to produce an overall PII. Assuming that measurement is excellent and selection biases are controlled, if a PII > 0.90 is documented for a program, and if a statistically significant difference in outcome measures is documented, the PEM provides strong evidence that the intervention is one of the most plausible explanations for observed effects.

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