Open AccessDEVELOPMENT OF A TEST FOR EVALUATING THE CONCEPTUAL KNOWLEDGE OF CHEMICAL EQUILIBRIUM CONSTANT AMONG UNIVERSITY STUDENTS AND ITS APPLICATION TO SPANISH STUDENTS
Author(s) -
Manel Martínez-Grau,
Joan Josep Solaz Portolés,
Vicent Sanjosé
Publication year - 2014
Publication title -
química nova
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.214
H-Index - 73
eISSN - 1678-7064
pISSN - 0100-4042
DOI - 10.5935/0100-4042.20140118
Subject(s) - test (biology) , constant (computer programming) , mathematics education , psychology , computer science , geology , paleontology , programming language
This article outlines a procedure that was used to develop a written test for evaluating the conceptual knowledge of chemical equilibrium constant among university students. The concepts in the subject matter were carefully defined through propositional statements. Students' understanding of the topic was determined through interviews. These data were used to produce nine multiple choice questions. Each question was designed to identify misconceptions related to the chemical equilibrium constant. The test was evaluated by foure associate professors and was administred to a total of 196 spanish university students. This test has a Cronbach's alpha reliability of 0.63 and its content validity values ranged from 3.7 to 5