{"title":"The Effect of Participation in Shadow Education as Parental Involvement in Smartphone Usage Time: A Comparison Before and After COVID-19 Outbreak","authors":"Haram Jeon, Hyunju Lee, Gayoung Kim","doi":"10.30916/kera.60.6.459","DOIUrl":null,"url":null,"abstract":"","PeriodicalId":345726,"journal":{"name":"Korean Educational Research Association","volume":"27 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2022-10-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Korean Educational Research Association","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.30916/kera.60.6.459","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
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