(In)accuracy and Convergent Validity of Daily End-of-day and Single-time Self-reported Estimations of Smartphone Use among Adolescents

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216224%3A14230%2F24%3A00137509" target="_blank" >RIV/00216224:14230/24:00137509 - isvavai.cz</a>

Result on the web

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DOI - Digital Object Identifier

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Result language

angličtina

Original language name

(In)accuracy and Convergent Validity of Daily End-of-day and Single-time Self-reported Estimations of Smartphone Use among Adolescents

Original language description

Understanding the measurement error introduced by self-reports of smartphone use is essential for making meaningful inferences about smartphone use and its effects. Evidence for the self-reports of smartphone use in repeated measurement designs is largely missing. Based on self- reported and digital trace data from 137 Czech adolescents (41% girls, Mage = 14.95 years), this study examined the accuracy, directional bias, and convergent validity of daily end-of-day and single-time self-reports of screen time and phone-checking behaviour. Overall, the study found considerable discrepancies between self-reported smartphone use and digital trace and low between-person convergent validity for all self-reports considered for the study, which indicates that self-reports are poor measures of smartphone use. Respondents usually underestimated their screen time and phone-checking behaviour in daily and single-time self-reports. The within-person convergent validity of daily reports was low, which shows their poor ability to capture the actual day-to-day fluctuations in smartphone use. The current study shows that the self-reports of smartphone use introduce considerable measurement error. The study reinforces the evidence that conclusions about smartphone use and its effects based on self-reported data should be taken with caution and extends it to daily reports typically used in repeated measurement studies. When possible, researchers should avoid self-reports of smartphone use, and collect digital trace data instead.

Czech name

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Czech description

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Type

O - Miscellaneous

CEP classification

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OECD FORD branch

50800 - Media and communications

Project

<a href="/en/project/EH22_008%2F0004583" target="_blank" >EH22_008/0004583: Research of Excellence on Digital Technologies and Wellbeing</a><br>

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year

2024

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů