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Table 3 Data Collection Instruments

From: Rationale and design: telephone-delivered behavioral skills interventions for African Americans with type 2 diabetes

Measure Data Collected Method
Process Measures Information This will be measured by the 24-item Diabetes Knowledge Questionnaire (DKQ) [37].
  Motivation This will be measured by the 8-item Diabetes Empowerment Scale-Short Form (DES-SF) [38].
  Self-Efficacy This will be measured by the perceived diabetes self-management scale (PDSMS) [39].
  Behavioral Skills This will be assessed with the Summary of Diabetes Self-Care Activities (SDSCA) scale [40].
  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.
  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.
  Social support The Medical Outcomes Study (MOS) Social Support Survey [44] will be used to measure social support.
  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.
  Depression The PHQ-9 is a brief questionnaire that scores each of the 9 DSM-IV criteria for depression [46].
  Medical Comorbidity The patient's history of medical comorbidity will be documented using a standardized and validated questionnaire(ref#200) [42].
  Self-Reported Medication Adherence This will be measured with the new 8-item self-report Morisky Medication Adherence Scale (MMAS) [47].
  Diabetes Fatalism This will be measured with the 12-item Diabetes Fatalism Scales (DFS) [48].
  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.
  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.