Development, Validation, and Application of the Microbiology Concept Inventory

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This article describes the creation and validation of a new microbiology concept inventory using the American Society for Microbiology Curriculum Guidelines.

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10 p.

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Paustian, Timothy D.; Briggs, Amy G.; Brennan, R. E.; Boury, Nancy; Buchner, John; Harris, Shannon et al. October 5, 2017.

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Description

This article describes the creation and validation of a new microbiology concept inventory using the American Society for Microbiology Curriculum Guidelines.

Physical Description

10 p.

Notes

Abstract: If we are to teach effectively, tools are needed to measure student learning. A widely used method for
quickly measuring student understanding of core concepts in a discipline is the concept inventory (CI). Using
the American Society for Microbiology Curriculum Guidelines (ASMCG) for microbiology, faculty from
11 academic institutions created and validated a new microbiology concept inventory (MCI). The MCI was
developed in three phases. In phase one, learning outcomes and fundamental statements from the ASMCG
were used to create T/F questions coupled with open responses. In phase two, the 743 responses to MCI 1.0
were examined to find the most common misconceptions, which were used to create distractors for multiplechoice
questions. MCI 2.0 was then administered to 1,043 students. The responses of these students were
used to create MCI 3.0, a 23-question CI that measures students’ understanding of all 27 fundamental statements.
MCI 3.0 was found to be reliable, with a Cronbach’s alpha score of 0.705 and Ferguson’s delta of 0.97.
Test item analysis demonstrated good validity and discriminatory power as judged by item difficulty, item
discrimination, and point-biserial correlation coefficient. Comparison of pre- and posttest scores showed that
microbiology students at 10 institutions showed an increase in understanding of concepts after instruction,
except for questions probing metabolism (average normalized learning gain was 0.15). The MCI will enable
quantitative analysis of student learning gains in understanding microbiology, help to identify misconceptions,
and point toward areas where efforts should be made to develop teaching approaches to overcome them.

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  • Journal of Microbiology & Biology Education, 2017. Washington, DC: American Society for Microbiology

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Publication Information

  • Publication Title: Journal of Microbiology & Biology Education
  • Volume: 18
  • Issue: 3
  • Page Start: 1
  • Page End: 10
  • Peer Reviewed: Yes

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UNT Scholarly Works

Materials from the UNT community's research, creative, and scholarly activities and UNT's Open Access Repository. Access to some items in this collection may be restricted.

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Creation Date

  • October 5, 2017

Submitted Date

  • March 13, 2017

Accepted Date

  • July 28, 2017

Added to The UNT Digital Library

  • March 15, 2019, 11:51 a.m.

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Paustian, Timothy D.; Briggs, Amy G.; Brennan, R. E.; Boury, Nancy; Buchner, John; Harris, Shannon et al. Development, Validation, and Application of the Microbiology Concept Inventory, article, October 5, 2017; Washington, DC. (https://digital.library.unt.edu/ark:/67531/metadc1459149/: accessed March 21, 2019), University of North Texas Libraries, Digital Library, https://digital.library.unt.edu; crediting UNT College of Arts and Sciences.