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. 2009 Spring;8(1):29–43. doi: 10.1187/cbe.08-07-0039

Table 3.

Variables for postsemester videotaped interview (n = 7 control, n = 13 experimental students)

Independent Dependent-academic Dependent-attitude Potential covariates
Access to hand-held models (sections 1 & 2 = no access control, section 3, 4 & 5 = had access, experimental) Performance on 18 oral interview questions (documented from video by 4 blinded assessors, using rubric)

  • Tool(s) used to answer question (documented from video)

  • Time spent using tool(s) before answering questions (documented from video)

  • Self-reported tool preference during interview (post- interview survey)

  • Self-reported tool preference in future study (postinterview survey)

  • Student perceptions of what facilitates their learning (post- interview survey)

  • Gender

  • Previous Biocore 301 lecture final gradea

  • Previous Biocore 302 lab final gradea

  • 3D aptitude scorea

  • Subcell lab paper gradea

  • Had biochemistry?a

  • Previous exposure to molecular imagesa

  • Biocore 303 lecture final grade

  • Biocore 304 lab final grade

  • Research paper grades (enzyme proposal paper, enzyme final paper, yeast proposal paper)

  • Performance on mutation question (presurvey and postsurvey)

a Baseline, before models were introduced.