Incorporating EBP will depend on whether or not the individual physical therapist providing direct patient care has the propensity to integrate the best current research evidence available with patient values and clinical experience [7] and then apply the research evidence to the prevention, assessment and intervention of physical therapy problems across the continuum of care. [10] The purpose of this study was to identify the factors that affect the propensity of physical therapist to adopt EBP. The study demonstrated that multiple factors influence physical therapists' propensity to adopt EBP. Personal characteristics contributed significantly to the variance in the propensity to adopt EBP.
Self-directed Learning
Lifelong self directed learning is essential in the context of a rapidly growing and changing body of knowledge in health care. [32, 33] The study confirms that desire for learning, a component of self-directed learning, accounts for a modest proportion of the variance in the propensity to adopt EBP. The information seeking behavior common to both self-directed learning and EBP may account for the association. A fully self-directed learner is one who has learned to think critically. [29, 34]It is the critical reflection on practice that forms the basis for questions that lead to locating the best current research evidence.[35] Developing a question also requires other behaviors identified as characteristics of the self-directed learner in the literature: initiative, [19, 29] self-discipline, [19, 33]and the ability to develop and set goals. [19] Initiative and self-discipline were consistent with the behaviors described in the self-management scale, which emerged as a minimum predictor of the propensity to adopt EBP. Goal setting was addressed in two of the items in the self-control scale, which emerged as a minimum predictor of the propensity to adopt EBP.
Highest Degree Held
This study provides empirical evidence that the higher the degree of education physical therapists obtain the more likely they are to demonstrate the propensity to adopt EBP. This finding is consistent with previous research by Warren and Pierson [36]who found that physical therapy students with a master's degree demonstrated a more positive attitude toward research than baccalaureate students.
Age, Years Licensed as a Physical Therapist, and Time Spent in Direct Patient Care
Age and years licensed as a physical therapist were negatively correlated with the propensity to adopt EBP. When we examined age and years licensed with the predictor highest degree held, we extrapolated that physical therapists who were older and have been licensed longer were less likely to demonstrate the propensity to adopt EBP because they may not understand how to access the scientific literature. Time spent in direct patient care was negatively correlated with the propensity to adopt EBP. The negative correlation is noteworthy. Based on the findings of this study, physical therapists who are providing direct patient care value clinical experience and authority over scientific studies when making clinical decisions. This suggests direct patient care continues to be based on clinical experience and authority. Reaching the provider of direct patient care is imperative if the paradigm is going to shift to practice based on "the integration of the best research evidence with clinical experience and patient values." [7]
Practicality
Numerous authors have cited lack of time as a barrier to the adoption of EBP. [1, 37, 38] It is therefore not surprising that those physical therapists who reported that they agreed that evidence-based guidelines and scientific studies can be used to make clinical decisions in the day-to-day practice of physical therapy without interfering with productivity or the smooth and orderly flow of patients [21] demonstrated the propensity to adopt EBP. This finding suggests that research evidence needs to be easy to access, time efficient, and relevant to practice so that productivity and the smooth orderly flow of patients will not be adversely affected. Linking evidence to workflow so that physical therapists can act on it in a time efficient manner is essential. [39]Research evidence needs to be available at the point of care so that clinical questions can be answered quickly. [40]
Nonconformity
The study demonstrated there was a relationship between physical therapists who view themselves as engaging in clinical practices that are out of step with how others in the local community provide care or what opinion leaders recommend, nonconformist, [21] and the propensity to adopt EBP. We speculated that as physical therapists have moved toward autonomous practice in the United States and thereby perceived themselves as having the capability, ability, and responsibility to exercise professional judgment, they concomitantly demonstrated a propensity to value research evidence over experience and authority when making clinical decisions. EBP may require a physical therapist to depart from the usual and ordinary care that has been provided by other physical therapists in the facility in order to provide the right treatment for the right patient based on the best current research available. [41]
Multivariate findings
The variables desire for learning, practicality, and highest degree combined account for a moderate proportion of the observed variance in the propensity to adopt EBP. This combination of variables out performed any single variable predicting the propensity to adopt EBP. This finding reveals the fact that a combination of factors works synergistically to foster the propensity to adoption of EBP.
Limitations
Despite the theoretical integrity of these predictors we have limited explanatory power. The predictor variables employed in this study were selected based on a review of the literature. However, as with any study we studied only a finite number of variables. There were many variables that could have been considered including: skills in critically appraising the literature, computer access, knowledge of online databases, amount of time available to research evidence, presence of weekly case studies, or presence of a journal club in the facility or the community.
Another limitation deals with the sample. Because the sample frame only covered physical therapists licensed by the state of Georgia in the United States of America generalization to other groups must be handled by logical rather than statistical inference.
Application
This study has a number of implications for the practice of physical therapy and other health care practices. In this study desire for learning, a component of self-directed learning, accounts for a modest proportion of the variance in the propensity to adopt EBP. Adults learn from experience and from problems in their everyday life. [19] Each day questions arise in the practice of health care that go unanswered. [35] It is in the day-to-day practice that continuing education should be taking place. Cervero, an expert in continuing education of medical professionals, has proposed that if "physicians are going to make good clinical judgments they need to learn from their experience in the swamp of practice."[42]The same is true for all health care practitioners. EBP harks back to the natural teaching method described by Osler. [43] The patient is the source of the health care practitioner's inquiry. To maximize the benefit of self-directed learning health care practitioners will need to reflect on practice and develop a process of questioning. It is this critical reflection on practice that forms the basis for questions that lead to locating the best current research evidence on interventions. [35] Reflecting on practice illustrates to members of the health care team how the ordinary challenges of work can be converted into opportunities for learning. [24] To further foster a desire for learning and encourage the use of EBP opportunities should be made available to provide health care practitioners the leisure to "reflect on their reflection in action" [42] in clinical decision making in the presence of colleagues. In other words there should be a forum where there is critical debate of the treatment interventions based on the best current research evidence available. These communities of practice [44] can take the form of weekly journal clubs or case studies. Exploiting the problems that arise in day-to-day practice of the health care practitioners by reflecting on practice, converting the patient problems to questions and reflecting on actions with colleagues develops habits of practice that are consistent with facilitating self-directed learning. [38, 45, 46]
Practicality accounted for a moderate proportion of the variance in the propensity to adopt EBP among physical therapists. It is imperative that the health care professions, adult educators, change agents and department managers investigate ways to make EBP easy to access, time efficient, and relevant to practice so that productivity and the smooth orderly flow of patients will not be adversely affected. Research evidence needs to be linked to workflow so that health care practitioners can act on it in a time efficient manner. [39]The best current research evidence for treatment interventions needs to be readily available electronically in the same place and at the same time that a health care professional is making a clinical decision so that the right treatment intervention is provided for the right patient in a timely manner.