Table 3 Data Collection Instruments
Measure | Data Collected | Method |
|---|---|---|
Process Measures | Information | This will be measured by the 24-item Diabetes Knowledge Questionnaire (DKQ) [37]. |
| Â | Motivation | This will be measured by the 8-item Diabetes Empowerment Scale-Short Form (DES-SF) [38]. |
| Â | Self-Efficacy | This will be measured by the perceived diabetes self-management scale (PDSMS) [39]. |
| Â | Behavioral Skills | This will be assessed with the Summary of Diabetes Self-Care Activities (SDSCA) scale [40]. |
| Â | Treatment Credibility | To assess for differences in outcome expectancy, a modified treatment credibility scale developed by Borkovec and Nau (1972) will be used [41]. |
Self-report measures | Demographics | Previously validated items from the 2002 National Health Interview Survey [42] will be used to capture age, gender, race/ethnicity, marital status, household income, and health insurance. |
| Â | Quality of Life | Quality of life will be measured by the SF-12 [43], which is a valid and reliable instrument to measure functional status. |
| Â | Social support | The Medical Outcomes Study (MOS) Social Support Survey [44] will be used to measure social support. |
| Â | Health Literacy | The abbreviated version of the Test of Functional Health Literacy in Adults (S-TOFHLA) [45] is designed to rapidly screen patients for potential health literacy problems. |
| Â | Depression | The PHQ-9 is a brief questionnaire that scores each of the 9 DSM-IV criteria for depression [46]. |
| Â | Medical Comorbidity | The patient's history of medical comorbidity will be documented using a standardized and validated questionnaire(ref#200) [42]. |
| Â | Self-Reported Medication Adherence | This will be measured with the new 8-item self-report Morisky Medication Adherence Scale (MMAS) [47]. |
| Â | Diabetes Fatalism | This will be measured with the 12-item Diabetes Fatalism Scales (DFS) [48]. |
| Â | Service Delivery Perceptions | This will be assessed with 5 items that have been previously validated in mental health studies. The items were slightly modified to be relevant to diabetes. |
| Â | Assessment of ECAPS Use | A brief 8-item scale will be used to assess the ease of use of the electronic medication adherence pill bottle. |