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Perceived familiarity or factual knowledge? Comparing operationalizations of scientific understanding
Journal article   Peer reviewed

Perceived familiarity or factual knowledge? Comparing operationalizations of scientific understanding

Pete Ladwig, Kajsa E Dalrymple, Dominique Brossard, Dietram A Scheufele and Elizabeth A Corley
Science & public policy, Vol.39(6), pp.761-774
12/2012
DOI: 10.1093/scipol/scs048

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Abstract

This study compares two frequently used operationalizations of understanding: factual knowledge and perceived familiarity. The authors argue that these measurements-which have been used interchangeably in past research-are conceptually distinct and should be treated as such. Using hierarchical linear ordinary least squares regression, this study provides evidence that factual knowledge and perceived familiarity are only slightly correlated and are influenced differently by predicting variables, such as media use and cognitive processing variables. As a result, the use of these measures may result in different assessments of the levels of public understanding, which has important implications for future policy decisions.
nanotechnology understanding familiarity media science knowledge

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