{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,12,23]],"date-time":"2025-12-23T12:34:16Z","timestamp":1766493256413,"version":"build-2065373602"},"reference-count":37,"publisher":"MDPI AG","issue":"20","license":[{"start":{"date-parts":[[2022,10,16]],"date-time":"2022-10-16T00:00:00Z","timestamp":1665878400000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"name":"CONICYT-Chile","award":["80180034"],"award-info":[{"award-number":["80180034"]}]},{"name":"Universidad Cat\u00f3lica del Norte","award":["Pro-fondecyt 2019"],"award-info":[{"award-number":["Pro-fondecyt 2019"]}]},{"name":"FONDECYT National Research and Development Agency, Govern-ment of Chile.","award":["ANID\/FONDECYT Regular 1210130"],"award-info":[{"award-number":["ANID\/FONDECYT Regular 1210130"]}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["IJERPH"],"abstract":"<jats:p>This study aims to examine the capacity of the Theory of Planned Behaviour (TPB) to explain the intention to use social networking sites by older people in two time periods, before and after confinement due to the COVID-19 epidemic, as well as the evolution of effects (paths) over time of TPB\u2019s determinants. Based on interviews from samples of 384 and 383 elderly Chilean adults collected before and after confinement, the evolution of the effects (paths) was analysed using the TPB model applying the PLS-SEM technique. The intention to use social networks and its association with three factors were evaluated: attitude toward the behaviour, subjective norms, and perceived control over the behaviour. The model explains the intention to use social networks by 27% before confinement, increasing its magnitude to 50% after confinement. After the period of confinement, their attitudes become more significant, their perceptions of control become less important, and social pressures remain permanent in predicting the behaviour. In conclusion, better access and greater use of social networks by older people during the lockdown period increased the predictive strength of the attitude towards these technologies.<\/jats:p>","DOI":"10.3390\/ijerph192013355","type":"journal-article","created":{"date-parts":[[2022,10,17]],"date-time":"2022-10-17T00:04:55Z","timestamp":1665965095000},"page":"13355","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":6,"title":["Acceptance of Social Networking Sites by Older People before and after COVID-19 Confinement: A Repeated Cross-Sectional Study in Chile, Using the Theory of Planned Behaviour (TPB)"],"prefix":"10.3390","volume":"19","author":[{"ORCID":"https:\/\/orcid.org\/0000-0001-7089-1505","authenticated-orcid":false,"given":"Patricio","family":"Ram\u00edrez-Correa","sequence":"first","affiliation":[{"name":"Engineering School, Universidad Cat\u00f3lica del Norte, Coquimbo 1780000, Chile"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-8639-667X","authenticated-orcid":false,"given":"Elizabeth","family":"Grand\u00f3n","sequence":"additional","affiliation":[{"name":"Department of Information Systems, Universidad del B\u00edo-B\u00edo, Concepci\u00f3n 4081112, Chile"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-4635-9425","authenticated-orcid":false,"given":"Jorge","family":"Arenas-Gait\u00e1n","sequence":"additional","affiliation":[{"name":"Department of Business Administration and Marketing, Universidad de Sevilla, 41018 Sevilla, Spain"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-0368-5335","authenticated-orcid":false,"given":"Javier","family":"Rond\u00e1n-Catalu\u00f1a","sequence":"additional","affiliation":[{"name":"Department of Business Administration and Marketing, Universidad de Sevilla, 41018 Sevilla, Spain"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-3642-6965","authenticated-orcid":false,"given":"Muriel","family":"Ram\u00edrez-Santana","sequence":"additional","affiliation":[{"name":"Public Health Department, Faculty of Medicine, Universidad Cat\u00f3lica del Norte, Coquimbo 1780000, Chile"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"1968","published-online":{"date-parts":[[2022,10,16]]},"reference":[{"key":"ref_1","first-page":"1","article-title":"Improving Older People\u2019s Lives Through Digital Technology and Practices","volume":"7","author":"Marston","year":"2021","journal-title":"Aging Technol.-Editor. 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