Development and Psychometric Testing of the Nursing Research Self-Efficacy Scale (NURSES)

Abstract

The Nursing Research Self-Efficacy Scale (NURSES) was designed to measure individual nurses' degree of research self-efficacy and their perceptions regarding their unit's collective support of research use. Development for the NURSES instrument spanned a 4-year period, which included initial development, revisions, and psychometric evaluations. The NURSES is a 38-item Likert-scale instrument developed through ongoing instrument validation that included content validation and exploratory and confirmatory analysis. The 5 subscales include obtaining science-based knowledge resources, critically reading and evaluating quantitative research literature, critically reading and evaluating qualitative research literature, understanding and applying theory, and collective research efficacy. Over a 4-year period, approximately 1000 practicing nurses from multiple hospitals responded to the instrument. Exploratory and confirmatory factor analyses supported the existence of four subscales for research self-efficacy and one subscale for collective research efficacy. Reliability for the subscales was excellent, ranging from .94 to .97. Hospitals may wish to use the NURSES instrument as an orientation tool, or to examine relationships between research efficacy and nurses' professional development. Health care facilities on a Magnet journey might also use the NURSES instrument to assess their nursing staff as they pursue evidence-based practice and conduct research.