An ethnographic, controlled study of the use of a computer-based histology atlas during a laboratory course.

Full Abstract

OBJECTIVE: To evaluate the use and effect of a computer-based histology atlas during required laboratory sessions in a medical school histology course. DESIGN: Ethnographic observation of students' interactions in a factorial, controlled setting. MEASUREMENTS: Ethnographer's observations; student and instructor self-report survey after each laboratory session with items rated from 1 (least) to 7 (best); microscope practicum scores at the end of the course. RESULTS: Between groups assigned the atlas and those not, the ethnographer found qualitative differences in the semantic categories used by students in communicating with each other and with the faculty. Differences were also found in the quality of the interactions and in the learning styles used with and without the computer present in the laboratory. The most interactive learning style was achieved when a pair of students shared a computer and a microscope. Practicum grades did not change with respect to historical controls. Students assigned the atlas, compared with those not assigned, reported higher overall satisfaction (a difference in score of 0.1, P = 0.003) and perceived their fellow students to be more helpful (a difference of 0.11, P = 0.035). They rated the usefulness of the microscope lower (a difference of 0.23, P<0.001). CONCLUSION: A computer-based histology atlas induces qualitative changes in the histology laboratory environment. Most students and faculty reacted positively. The authors did not measure the impact on learning, but they found that there are aspects of using the atlas that instructors must manipulate to make learning optimal. Ethnographic techniques can be helpful in delineating the context and defining what the interventions might be.

Author information

Author/s: Lehmann, H P (HP); Freedman, J A (JA); Massad, J (J); Dintzis, R Z (RZ);

Affiliation: The Johns Hopkins University, Baltimore, Maryland 21287-4461, USA. lehmann(-atsign-)welch.jhu.edu

Journal and publication information

Publication Type: Clinical Trial; Controlled Clinical Trial; Journal Article; Research Support, Non-U.S. Gov't

Journal: Journal of the American Medical Informatics Association : JAMIA (J Am Med Inform Assoc), published in UNITED STATES. (Language: eng)

Reference: -1999 Jan-Feb; vol 6 (issue 1) : pp 38-52

Dates: Created 1999/02/16; Completed 1999/02/16; Revised 2008/11/20;

PMID: 9925227, status: MEDLINE (last retrieval date: 2/18/2009, IMS Date: )

Sourced from the National Library of Medicine. Abstract text and other information may be subject to copyright.

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