Development and validation of the biobanking attitudes and knowledge survey-Spanish (BANKS-SP)

Abstract

Few research studies with non-English-speaking audiences have been conducted to explore community members' views on biospecimen donation and banking, and no validated Spanish-language multi-scale instruments exist to measure community perspectives on biobanking. This study describes the development and psychometric properties of the Biobanking Attitudes aNd Knowledge Survey-Spanish (BANKS-SP). The BANKS was translated into Spanish using the Brislin method of translation. Draft BANKS-SP items were refined through cognitive interviews, and psychometric properties were assessed in a sample of 85 Spanish-speaking individuals recruited at various community events in a three county area in central west Florida, USA. The final BANKS-SP includes three scales: attitudes, knowledge, and selfefficacy; as well as three single items, which evaluated receptivity and intention to donate a biospecimen for research. The final Cronbach's alpha coefficients for the two scales that use a Likert response format indicated adequate internal consistency (attitudes, α = .79; self-efficacy, α = .91). Intention to donate blood and intention to donate urine were positively correlated with attitudes, self-efficacy, and receptivity to learning more about biobanking (all p's < .001). BANKS-SPKnowledge was not statistically significantly correlated with other BANKS-SP scales or single items measuring intention to donate a biospecimen for research and receptivity for learning more about biospecimen research. The BANKS-SP attitudes and self-efficacy scales show evidence of satisfactory reliability and validity. Additional research should be conducted with larger samples to assess the BANKS-SP instrument's reliability and validity. A valid and reliable Spanish-language instrument measuring Spanish-speaking community members' views about biobanking may help researchers evaluate relevant communication interventions to enhance understanding, intention, and actual biospecimen donation among this population.

Development and Validation of the Biomedical Research Trust Scale (BRTS) in English and Spanish

“…Summed scores are computed with higher scores indicating greater self-efficacy. The BANKS-Self-Efficacy demonstrated strong internal consistency in English (α = .95; Wells et al, 2014) and Spanish (α = .91; Arevalo et al, in press). …”

“…The BANKS and BANKS-SP instruments include three multi-item scales evaluating attitudes toward, knowledge of, and self-efficacy related to biospecimen donation and biobanking, as well as three single items evaluating intention to donate a biospecimen and receptivity toward learning more about biospecimen donation and biobanking. A Biobanking Community Advisory Board (B-CAB) provided guidance on the development, refinement of items, interpretation of results, and dissemination efforts for the BRTS, BANKS, BRTS-SP, and BANKS-SP (Arevalo et al, in press; Wells et al, 2014). …”

“…BANKS-Attitudes scores are calculated by first reverse coding negatively worded items and then summing across all scale items. The BANKS-Attitudes scale has adequate internal consistency in English (α = .88; Wells et al, 2014) and Spanish (α = .77; Arevalo et al, in press). …”

“…The BANKS-Knowledge scale assesses participants’ knowledge regarding biospecimen donation and biobanking, and includes 16 factual statements in which participants respond yes , no , or don’t know (Arevalo et al, in press; Wells et al, 2014). BANKS-Knowledge scores range from 0 to 16, and represent the total number of items answered correctly.…”

“…One single item measures participants’ receptivity toward learning more about biospecimen donation and biobanking (BANKS-SP-Receptivity: Arevalo et al, in press; BANKS-Receptivity: Wells et al, 2014). All single items are rated on a 5-point Likert-type scale ranging from 1 = definitely no to 5 = definitely yes .…”