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Biomedical subjects

L Roberson

Publications and source records attributed to L Roberson.

5 recordsLinked to original sources
PubMed2001

Integration of computers and related technologies into deaf education teacher preparation programs.

The study examined how computer technology is used, modeled, and taught in programs that prepare future teachers of students who are deaf or hard of hearing. Data were collected through two self-reported survey instruments sent to participants from two different groups: (a) deaf education faculty (n = 233) and (b) administrators of programs serving students who are deaf or hard of hearing (n = 100). Among the faculty who responded to the survey, 99% said they used computers and printers for instruction during class, 84% said they used VCRs for instruction during class, and 56% said they used video cameras for instruction during class. The information that was reported on how technology was being used for instruction and how its use was being taught to students in deaf education teacher preparation programs indicates that the need persists for integration of technology into these programs. A need likewise continues for improved instructional strategies relative to computers and technology.

Computer-Assisted Instruction↗
PubMed1989

Measuring affect at work: confirmatory analyses of competing mood structures with conceptual linkage to cortical regulatory systems.

Twenty so-called clear markers of positive and negative mood (Watson & Tellegen, 1985) were applied in the current study to measure affect at work. Confirmatory factor analyses of a bipolar Two-Factor (i.e., positive and negative affect) Model and a competing multifactor model were conducted with three samples: managerial and professional workers in an insurance firm, retail sales personnel, and a heterogeneous group of students who were employed. The first-order Two-Factor Model (i.e., descriptively bipolar positive and negative affect factors) hypothesized to underlie the 20 affect items did not provide a strong fit to the data in the three samples. A first-order Four-Factor Model with descriptively unipolar factors labeled as Positive Arousal (Enthusiasm), Negative Activation (Nervousness), Low Arousal (Fatigue), and Low Activation (Relaxation) provided a better fit across the samples. These results support the measurement of positive and negative mood as descriptively unipolar factors. The measurement implications of these results as well as conceptual linkages between the four mood factors and the two major cortical regulatory systems, left-lateralized dopaminergic activation and right-lateralized noradrenergic arousal, are discussed.

Adult↗
PubMedDate not supplied

Evaluating evaluation: assessment of the American Board of Internal Medicine Resident Evaluation Form.

The American Board of Internal Medicine suggests use of a standard form to rate residents on nine dimensions (such as clinical judgment and overall clinical competence) on a scale of 1 to 9. The authors examined the psychometric evidence for reliability and validity of 1,039 ratings of 85 residents by 135 attendings in a single internal medicine residency program. Of these ratings, 95.6% were from 6 to 9. Factor analysis revealed that high correlations among the nine dimensions (r ranged from 0.72 to 0.92) resulted from a single global factor accounting for 86% of the variance. The study also examined whether the form reliably distinguishes among residents scoring between 6 and 9. Agreement among attendings rating the same individual was weak (average reliability = 0.64, by the method of James). The rating method fails to discriminate dimensions of clinical care and has low reliability for distinguishing among competent residents.

Clinical Competence↗
PubMedDate not supplied

Objective measures of joint stiffness.

Objective measures of joint stiffness allow for the evaluation of the effectiveness of treatment modalities. Without this, the effectiveness of therapy is not quantifiable. Presently, joint stiffness can be quantified by either passive range of motion (PROM) measurement or torque range of motion (TqROM) measurement. PROM measurement does not control the force applied, nor does it require that the other joints in the kinematic chain be held fixed. Also, it demonstrates poor interrater reliability. An idealized device melding existing technologies of constant passive motion devices and computerized workstations is proposed to allow for easier measurement of TqROM angles for analysis data for the determination of the effectiveness of treatment modalities.

Diagnosis, Computer-Assisted↗