posted on 2020-03-14, 12:03authored byNorda
S. Stephenson, Erin M. Duffy, Elizabeth L. Day, Kira Padilla, Deborah G. Herrington, Melanie M. Cooper, Justin H. Carmel
The development of proficiency in
the practices used by scientists
and engineers is considered an important student outcome of laboratory
instruction. We developed tasks to assess students’ use and
development of selected scientific and engineering practices in the
general chemistry laboratory using an adapted evidence-centered design
approach. In this paper, we provide a detailed description of the
process of development and validation of these assessment tasks, using
one of our tasks to illustrate the process. The tasks show strong
evidence of validity and reliability for revealing students’
understanding of scientific and engineering practices within the research
context.