Objective: The objectives of this study were to (1) identify factors predictive of performance on the National Board of Chiropractic Examiners Part IV exam and (2) investigate correlations between the scores obtained in the Part I, Part II, Physiotherapy, and Part III exams and the Part IV examination. Methods: A random sample of 1341 records was drawn from National Board of Chiropractic Examiners data to investigate the relationships between the scores obtained on the National Board of Chiropractic Examiners exams. A hierarchical multiple regression analysis related the performance on Part IV to examinee's gender, Part IV repeater status, and scores obtained on the Part I, Part II, Physiotherapy, and Part III exams. Results: The analyses revealed statistical relations among all National Board of Chiropractic Examiners exams. The correlations between Part IV and Part I ranged from r = .31 to r = .4; between Part IV and Part II from r = .34 to r = .45. The correlation between Part IV and Physiotherapy was r = .44; between Part IV and Part III was r = .46. The strongest predictors of the Part IV score were found to be examinees' scores in Diagnostic Imaging, β̂ = .19, p < .001; Chiropractic Practice, β̂ = .17, p < .001; Physiotherapy, β̂ = .15, p < .001; and the Part III exam β̂ = .19, p < .001. Conclusions: Performance on the National Board of Chiropractic Examiners Part IV examination is related to the performance in all other National Board of Chiropractic Examiners exams.
Background: Falls are a major health concern for older adults and their impact is a significant public health problem. The chief modifiable risk factors for falls in community-dwellers are psychotropic drugs, polypharmacy, environmental hazards, poor vision, lower extremity impairments, and balance impairments. This study focused on balance impairments. Its purpose was to assess the feasibility of recruiting older adults with possible balance problems for research conducted at a chiropractic research center, and to explore the utility of several widely used balance instruments for future studies of the effect of chiropractic care on balance in older adults.
Objective: This article introduces changes made to the diagnostic imaging (DIM) domain of the Part IV of the National Board of Chiropractic Examiners examination and evaluates the effects of these changes in terms of item functioning and examinee performance. Methods: To evaluate item function, classical test theory and item response theory (IRT) methods were employed. Classical statistics were used for the assessment of item difficulty and the relation to the total test score. Item difficulties along with item discrimination were calculated using IRT. We also studied the decision accuracy of the redesigned DIM domain. Results: The diagnostic item analysis revealed similarity in item function across test forms and across administrations. The IRT models found a reasonable fit to the data. The averages of the IRT parameters were similar across test forms and across administrations. The classification of test takers into ability (theta) categories was consistent across groups (both norming and all examinees), across all test forms, and across administrations. Conclusion: This research signifies a first step in the evaluation of the transition to digital DIM high-stakes assessments. We hope that this study will spur further research into evaluations of the ability to interpret radiographic images. In addition, we hope that the results prove to be useful for chiropractic faculty, chiropractic students, and the users of Part IV scores.
The purpose of this article is to provide expert viewpoints on the topic of diversity in the chiropractic profession, including cultural competency, diversity in the profession, educational and clinical practice strategies for addressing diversity, and workforce issues. Over the next decades, changing demographics in North America will alter how the chiropractic profession functions on many levels. As the population increases in diversity, we will need to prepare our workforce to meet the needs of future patients and society.
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