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Biomedical subjects

M R Robeson

Publications and source records attributed to M R Robeson.

6 recordsLinked to original sources
PubMed1996

Gender differences among civilly committed schizophrenia subjects.

The authors describe a sample of 815 acutely ill schizophrenia patients hospitalized under a petition for involuntary inpatient treatment and illustrate how this group of patients can be considered as more representative of involuntary commitment status than more traditional "involuntary" patients drawn from State hospitals' wards. Available demographics of the general population from which the sample was drawn are also presented for comparison. The authors then report the gender distribution of several variables--age, marital status, psychoactive substance use, comorbidity, length of stay, and frequency of readmissions--among the study sample and discuss the relevance of these findings.

Adolescent↗
PubMed1996

Retrospective study of 2,200 involuntary psychiatric admissions and readmissions.

OBJECTIVE: The authors describe demographic data, the distribution of diagnoses, and comorbid psychoactive substance use in a large sample of patients involuntarily admitted to a psychiatric hospital from multiple crisis centers and explore the relative roles these variables may play in service utilization and admission rates. METHOD: Data on demographic characteristics and comorbid psychoactive substance use in 2,200 consecutive involuntary hospital admissions of 1,755 psychiatric patients were gathered. Pertinent demographic and comorbidity data at first admission for the 1,755 patients, 314 of whom were admitted more than once, were analyzed; then the data for the 1,441 single-admission patients and the data at first admission for the 314 patients who had multiple admissions were compared. Finally, the diagnostic distribution and comorbid psychoactive substance use in all 2,200 admissions were investigated, with attention to a subgroup of 88 high-risk patients (those with three or more admissions) who represented a total of 307 admissions. RESULTS: Specific demographic characteristics were represented in the patient group at a high level of statistical significance. The diagnosis of schizophrenia was significantly overrepresented. Schizophrenia and psychosis not elsewhere classified clustered in the subgroup with a high risk of readmission. CONCLUSIONS: The results suggest a specific profile for the patient with heightened risk of hospital admission: a young, unmarried, African American male who has schizophrenia without comorbid substance abuse. An effect size data analysis identified marital status and a diagnosis of schizophrenia as the variables associated with the greatest likelihood of admission. Unexpectedly, the impact of comorbid psychoactive substance use was relatively modest and showed a uniform distribution among diagnostic groups.

Adolescent↗
PubMed1993

A solution to the cueing effects of multiple choice questions: the Un-Q format.

Although the cueing effects inherent in conventional multiple choice questions (MCQs) present serious limitations, this format continues to dominate testing programmes. The present study was undertaken to estimate the effects of cueing when MCQs are used to test medical students, and to evaluate the reliability, validity and feasibility of an alternative testing format. Equivalent items in both MCQ and open-ended, or uncued (Un-Q), formats were administered to 34 third- and fourth-year medical students. The students' mean % correct score on the MCQs was 11 percentage points higher than their mean level of performance on equivalent Un-Qs. When a second set of more difficult items was administered to 16 of these students, their mean performance on the MCQ items was 22 percentage points higher than their performance on equivalent Un-Qs. The results support the feasibility of large group administration of tests constructed in an open-ended format that can be scored by computer. Not only is this format equally reliable and economical when compared with the MCQ, but it also provides important advantages that strengthen its face validity. The Un-Q format can be used to test either simple recall or certain higher level problem-solving skills that cannot be tested by MCQs. Even more important, the results also suggest that the Un-Q format may be a more effective discriminator of academically marginal examinees.

Cues↗
PubMed1991

Medical students who enter general surgery residency programs: a follow-up between 1972 and 1986.

Although a few surgical residents do leave the surgical field, little research has been done into the eventual whereabouts of all surgical residents. We undertook this follow-up to find out what proportion of them enter the surgical field and to identify changing patterns over the past 15 years. We compared 593 medical school graduates on demographics, academic credentials, and surgery program directors' rating of their performance in the first postgraduate year (PGY-1). Sixty percent remained in general surgery, and about 26% moved to another specialty within the surgical field. During the mid-1970s, those who remained within the surgical field had better academic credentials on average than those who switched out of the surgical field. However, more recently, the trend has reversed. There were no differences between the groups on age or sex. These results suggest that some good students are being recruited into surgical programs but are later lost in major career switches. Perhaps these changes are related to residents' preferences for specialties that offer more controllable lifestyles than the surgical field.

Achievement↗
PubMed1988

Cueing in multiple choice questions: a reliable, valid and economical solution.

Test questions dealing with diagnosis and management were administered to medical students in both multiple-choice format and an open-ended form which can be scored by computer. Open-ended questions are feasible to administer, equally reliable and may be more valid in certain domains than multiple-choice questions.

Clinical Competence↗