Teacher attitudes toward evidence-based practices: Exploratory and confirmatory analyses of the school-adapted evidence-based practice attitude scale.

Background: The Evidence-Based Practice Attitudes Scale (EBPAS) is widely used in implementation research, but it has not been adapted and validated for use among general education teachers, who are most likely to deliver evidence-based prevention programs in schools, the most common setting where youth access social, emotional, and behavioral health services. Method: School-based stakeholders and a research team comprised of experts in the implementation of evidence-based practices in schools adapted the EBPAS for teachers (the S-EBPAS). The adapted instrument was administered to a representative sample (n = 441) of general education teachers (grades K-5) to assess the reliability and internal consistency via factor analyses. The S-EBPAS included two forms (i.e., EBP-agnostic and EBP-specific item referents), therefore, a multiple-group confirmatory factor analysis (CFA) was also performed to establish measurement invariance between the two forms. Results: After adaptation and refinement, a 9-item, 3-factor structure was confirmed, with the final model supporting three first-order factors that load onto a second-order factor capturing attitudes toward adopting evidence-based practices. Multiple-group CFA analyses of measurement invariance indicated there were no significant differences between the two forms. Conclusions: Overall, this study provides a brief, flexible instrument capturing attitudes toward adopting EBPs that has high reliability and internal consistency, which support its use among general education teachers in school settings implementing evidence-based practices. Plain Language Summary: The Evidence-Based Practice Attitudes Scale (EBPAS) is a popular instrument for measuring attitudes toward evidence-based practices (EBPs). This instrument provides valuable information during implementation initiatives, such as whether providers or front-line implementers have favorable attitudes toward a given practice. The EBPAS has been used in many different settings, such as in community-based mental health clinics, medical hospitals, and in child welfare. However, it's use in schools has been limited, and it has not yet been tested with general education teachers, who are key implementers of evidence-based practices in schools. In order to trust that the scores from an instrument are accurate, it needs to be evaluated when scaling it out to new populations and settings. One popular method to determine this is to use factor analysis, which was employed in this study. This study fills the identified gap by assessing the reliability (i.e., accuracy) and internal consistency of the EBPAS among a representative sample of general education teachers. Findings from this study indicate that the school-adapted EBPAS (S-EBPAS) is a brief, nine-item instrument that provides a reliable estimate of teachers' attitudes toward evidence-based practices. Our results also provide evidence that the S-EBPAS can be used to capture attitudes toward specific EBPs as well as attitudes toward EBP-agnostic. This study provides a flexible instrument that can be used by school-based implementation researchers, practitioners, and intermediaries at multiple phases of implementation projects, such as when exploring a new EBP to adopt.