Full length articleConstruct and consequential validity for learning analytics based on trace data☆,☆☆
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Construct and consequential validity for learning analytics based on trace data
Today's learners regularly use modern software tools to search for information, annotate information they find online, study for exams, collaborate on projects, analyze data gathered in local or distantly run experiments, and compose essays. With learners' consent, some software they use can be engineered to record detailed and extensive trace data (Winne, 1982, 2010), a kind of data increasingly sought to develop learning analytics. A trace datum is “an objective (i.e., readily agreed to)
One goal for learning analytics
To learn new information of kinds educators and the larger society deem important, I posit learners make choices about which cognitive operations they will apply to which particular information. That is, learners are intrinsically self-regulating (Winne, 1995). Whatever interventions instructional designers and whichever tools software developers might design, each learner's choices about how and what to learn are the proximal variables that shape whether learning happens and what is learned (
Reliability as a faceted event
A first step toward examining the concept of reliability as it applies to events is describing what an event is. Systems in which events happen have, at any particular point in time, a state. A state is described by particular values for one or several attributes. For example, suppose a learner is viewing text and has access to a tool to mark the text, e.g., by dragging a cursor across it to shade white space surrounding letters that create a yellow highlight. Knowing the values of attributes
Reliability of data in learning analytics
Like other sciences, learning analytics seeks, first, to identify facets that are sources of variance in learning events; second, to quantify the degree of each source's variability; and, third, to recommend changes in learning practices that are valid in the sense that the analytic leads to the result that is intended and that has value, so learners (or instructors) will act on information the analytic supplies. The first two steps establish that changing a facet's value or quality produces
Validity in the context of learning analytics
Messick defined validity as the “degree to which empirical evidence and theoretical rationale supports the adequacy and appropriateness of inferences and actions based on test scores” (Messick, 1989p. 5; emphasis is mine). Later, he described a particular view of validity regarding actions, called consequential validity, as the appropriateness of shaping instructional processes guided, in part, by assessment data (Messick, 1995).
Adopting Messick's widely acknowledged descriptions, it becomes
Validity as a network of issues
The concepts of validity and reliability are complex. The validity of claims and of the match between intended and actual consequences are conditional on the generalizability of data needed to assert validity. As is likely obvious, the definition of a trace datum quoted at the beginning of this article explicitly binds issues of reliability to what a datum represents, i.e., to some theoretical foundation. This itself begs questions about validity.
Most reports in the educational and
CRediT authorship contribution statement
Philip H. Winne: Conceptualization, Writing - original draft, Writing - review & editing.
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Faculty of Education, EDB 8515, Simon Fraser University, 8888 University Drive, Burnaby, BC V5A 1S6, Canada.
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This work was supported by grants to Philip H. Winne from the Social Sciences and Humanities Research Council of Canada #435-2016-0379 and Simon Fraser University.