Background
Behavioral intention (which captures one’s level of motivation to perform a behavior) is considered a causal and proximal mechanism influencing the use of evidence-based practice (EBP). Implementation studies have measured intention differently, and it is unclear which is most predictive. Some use items referring to “evidence-based practice” in general, whereas others refer to a specific EBP. There are also unresolved debates about whether item stems should be worded “I intend to,” “I will,” or “How likely are you to” and if a single-item measure can suffice. Using each stem to refer to either a specific EBP or to “evidence-based practice,” this study compares the ability of these commonly used measures to predict future EBP implementation. The predictive validity is important for causal model testing and the development of effective implementation strategies.
Methods
A longitudinal study enrolled 70 teachers to track their use of two EBPs and compare the predictive validity of six different items measuring teachers’ intention. The measures differ by whether an item refers to a specific EBP, or to “evidence-based practices” in general, and whether the stem is worded in one of the three ways: “I intend to,” “I will,” or “How likely are you to.” For each item, linear regressions estimated the variance in future behavior explained. We also compared the predictive validity of a single item versus an aggregate of items by inter-correlating the items using different stems and estimating the explained variance in EBP implementation.
Results
Depending on the EBP and how intention was measured, the explained variance in implementation ranged from 3.5 to 29.0%. Measures that referred to a specific EBP, rather than “evidence-based practices” in general, accounted for more variance in implementation (e.g., 29.0% vs. 8.6%, and 11.3% vs. 3.5%). The predictive validity varied depending on whether stems were worded “I intend to,” “I will,” or “How likely are you to.”
Conclusions
The observed strength of the association between intentions and EBP use will depend on how intention is measured. The association was much stronger if an item referred to a specific EBP, rather than EBP in general. To predict implementation, the results support using an aggregate of two or three intention items that refer to the specific EBP. An even more pragmatic measure of intention consisting of a single item can also predict implementation. As discussed, the relationship will also vary depending on the EBP, which has direct implications for causal model testing and the design of implementation strategies.
Mental health clinicians do not consistently use evidence-based assessment (EBA), a critical component of accurate case conceptualization and treatment planning. The present study used the Unified Theory of Behavior to examine determinants of intentions to use EBA in clinical practice among a sample of Masters' level social work trainees (N = 241). Social norms had the largest effect on intentions to use EBA. Injunctive norms in reference to respected colleagues accounted for the most variance in EBA intentions. Findings differed for respondents over 29 years of age vs. younger respondents. Implications for implementation strategies and further research are discussed.
Existing literature related to HIV in the Dominican Republic has tended to neglect the unique role of tourism areas as distinct ecologies facilitative of sexual risk behavior, particularly HIV vulnerability and transmission. Furthermore, limited attention has focused on Dominican adolescents living in close proximity to tourism areas who have become increasingly exposed to alcohol due to the expanding tourism industry in the Dominican Republic. While most previous analyses of the effects of alcohol on adolescent sexual risk behavior have focused on the transient effects of alcohol on judgment and decision making, the effects of chronic alcohol use on sexual behavior has been a neglected area of research. Our study explores the relationship between chronic alcohol use, the parent–adolescent relationship, affective factors such as self-esteem, and intentions to engage in sex. We examine the above factors within the context of tourism areas which represent a unique ecology of alcohol availability and consumption and HIV risk. We discuss implications for developing applied family-based programs to target Dominican adolescent alcohol use and sexual risk behavior in tourism areas of high alcohol exposure.
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