Multiple mini-interview : how long is long enough?

Dodson, Michael, Crotty, Brendan, Prideaux, David, Carne, Ross, Ward, Alister and de Leeuw, Evelyne 2009, Multiple mini-interview : how long is long enough?, Medical education, vol. 43, no. 2, pp. 168-174, doi: 10.1111/j.1365-2923.2008.03260.x.

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Title Multiple mini-interview : how long is long enough?
Author(s) Dodson, Michael
Crotty, BrendanORCID iD for Crotty, Brendan
Prideaux, David
Carne, Ross
Ward, AlisterORCID iD for Ward, Alister
de Leeuw, Evelyne
Journal name Medical education
Volume number 43
Issue number 2
Start page 168
End page 174
Total pages 6
Publisher Blackwell Publishing Ltd
Place of publication Oxford, England
Publication date 2009
ISSN 0308-0110
Keyword(s) interview, psychological
clinical competence/*standards
educational measurement/methods
*education, medical, undergraduate
Summary Objectives The multiple mini-interview (MMI) overcomes the limitations of the traditional panel interview by multiple sampling to provide improved objectivity and reliability. Reliability of the MMI is affected by number of stations; however, there are few data reporting the influence of interview duration on MMI outcome and reliability. We aimed to determine whether MMI stations can be shortened without affecting applicant rankings or compromising test reliability.
Methods A total of 175 applicants were interviewed and assessed at 10 8-minute stations. Applicants were scored once after 8 minutes at five control stations and twice after 5 minutes and 8 minutes at five experimental stations. Scores at 5 and 8 minutes were compared using t-tests and correlation coefficients. Rankings of applicants based on 5- and 8-minute scores were compared using Spearman's rank order coefficient. The reliability of the MMI was examined for 5- and 8-minute scores using generalisability theory.
Results Mean scores at 5 minutes were lower than mean scores at 8 minutes. Cumulative scores at 5 minutes were also lower. There were highly significant correlations between 5- and 8-minute scores at all experimental stations (0.82–0.91; P < 0.01) and between the cumulative scores at 5 and 8 minutes (0.92; P < 0.01). There was a strong correlation between applicant rankings based on cumulative 5- and 8-minute scores (Spearman's rank order coefficient 0.92). Reliability was not affected.
Conclusions Reducing the duration of MMI stations from 8 to 5 minutes conserves resources with minimal effect on applicant ranking and test reliability.
Language eng
DOI 10.1111/j.1365-2923.2008.03260.x
Field of Research 130209 Medicine, Nursing and Health Curriculum and Pedagogy
Socio Economic Objective 970113 Expanding Knowledge in Education
HERDC Research category C1 Refereed article in a scholarly journal
HERDC collection year 2009
Copyright notice ©2009, Blackwell Publishing Ltd.
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School of Medicine
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