Approximately 40% of mobile phone use studies published in scholarly communication journals base their findings on self-report data about how frequently respondents use their mobile phones. Using a subset of a larger representative sample we examine the validity of this type of self-report data by comparing it to server log data. The self-report data correlate only moderately with the server log data, indicating low criterion validity. The categorical self-report measure asking respondents to estimate 'how often' they use their mobile phones fared better than the continuous self-report measure asking them to estimate their mobile phone activity 'yesterday'. A multivariate exploratory analysis further suggests that it may be difficult to identify under- and overreporting using demographic variables alone.
Measuring mobile phone use
Self-report versus log data
Year
Pages
508-519
Published in
Journal of Computer-Mediated Communication
18 (4)
Library number
20220099 ST [electronic version only]
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