Analysis of Student Performance on Multiple-Choice Questions in General Chemistry

• JudithAnn R. Hartman ^[1] ; Shirley Lin ^[1]
  1. [1] United States Naval Academy

     United States Naval Academy

     Estados Unidos

     
• Localización: Journal of chemical education, ISSN 0021-9584, Vol. 88, Nº 9, 2011, págs. 1223-1230
• Idioma: inglés
• Texto completo no disponible (Saber más ...)
• Resumen

  • The percentage of students choosing the correct answer (PSCA) on 17 multiple-choice algorithmic questions taken from general chemistry exams is analyzed. PSCAs for these questions varied from 47 to 93%, and a decrease of 4.5% in PSCA was observed with each additional step in the algorithm required for solving the problem (R2 = 0.80). Variants of a subset of these questions were also examined and reveal the effect of making changes to a particular algorithmic question on the ability of students to choose the correct answer.