{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,3,19]],"date-time":"2026-03-19T18:07:05Z","timestamp":1773943625352,"version":"3.50.1"},"reference-count":45,"publisher":"SAGE Publications","issue":"12","license":[{"start":{"date-parts":[[2018,6,20]],"date-time":"2018-06-20T00:00:00Z","timestamp":1529452800000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/journals.sagepub.com\/page\/policies\/text-and-data-mining-license"}],"content-domain":{"domain":["journals.sagepub.com"],"crossmark-restriction":true},"short-container-title":["New Media &amp; Society"],"published-print":{"date-parts":[[2018,12]]},"abstract":"<jats:p> Social networking platforms, such as WhatsApp, constitute a major part of adolescents\u2019 social lives. Alongside the positive aspects of such platforms, there is a risk of using them as a means for cyberbullying. Schools have become increasingly aware of this risk and are prioritizing fighting cyberbullying through intervention programs, yet few interventions have been studied for their effectiveness. This study reports the results of a wide-scale school-based intervention designed to reduce cyberbullying and improve usage norms in WhatsApp classmates\u2019 groups. Data were collected from 52 classes in 12 public schools in Israel: n\u2009=\u200947 elementary school classes, 4th to 6th grades, and n\u2009=\u20095 middle school classes, 8th grade. A total of 1402 students answered questionnaires pre-intervention (51% females), while 90% of them ( n\u2009=\u20091268, 52% females) answered questionnaires 1\u2009month post-intervention. Results indicated a significant decrease in WhatsApp cyberbullying and a significant improvement in classroom climate. In addition, improvement in WhatsApp usage norms was positively correlated with a decrease in WhatsApp cyberbullying. <\/jats:p>","DOI":"10.1177\/1461444818782702","type":"journal-article","created":{"date-parts":[[2018,6,21]],"date-time":"2018-06-21T05:30:35Z","timestamp":1529559035000},"page":"4709-4727","update-policy":"https:\/\/doi.org\/10.1177\/sage-journals-update-policy","source":"Crossref","is-referenced-by-count":40,"title":["Cyberbullying in WhatsApp classmates\u2019 groups: Evaluation of an intervention program implemented in Israeli elementary and middle schools"],"prefix":"10.1177","volume":"20","author":[{"given":"Dana","family":"Aizenkot","sequence":"first","affiliation":[{"name":"Ashkelon Academic College, Israel"}]},{"given":"Gabriela","family":"Kashy-Rosenbaum","sequence":"additional","affiliation":[{"name":"Ashkelon Academic College, Israel"}]}],"member":"179","published-online":{"date-parts":[[2018,6,20]]},"reference":[{"key":"bibr1-1461444818782702","doi-asserted-by":"publisher","DOI":"10.1037\/13621-002"},{"key":"bibr2-1461444818782702","first-page":"363","volume":"20","author":"Aizenkot D","year":"2017","journal-title":"Educational Counseling"},{"key":"bibr3-1461444818782702","unstructured":"Aizenkot D, Menachem G (2017a) Cyberbullying reduction and safe online communication promotion. Intervention Program for Elementary School. Available at: https:\/\/drive.google.com\/file\/d\/1dkNAt9KaT_TbM4_UHF3hBpnwubJGdV0a\/view?usp=sharing (in Hebrew)."},{"key":"bibr4-1461444818782702","unstructured":"Aizenkot D, Menachem G (2017b) Cyberbullying reduction and safe online communication promotion. Intervention Program for Middle School. Available at: https:\/\/drive.google.com\/file\/d\/1gFf7yz5E6KLz0g_JaHCDltNBQWuG3qP1\/view?usp=sharing (in Hebrew)."},{"key":"bibr5-1461444818782702","doi-asserted-by":"publisher","DOI":"10.1007\/978-3-319-12349-3_24"},{"key":"bibr6-1461444818782702","doi-asserted-by":"publisher","DOI":"10.1002\/ab.21625"},{"key":"bibr7-1461444818782702","doi-asserted-by":"publisher","DOI":"10.2174\/1745017901511010058"},{"issue":"2","key":"bibr8-1461444818782702","first-page":"29","volume":"13","author":"Cetinkaya L","year":"2017","journal-title":"International Journal of Progressive Education"},{"key":"bibr9-1461444818782702","doi-asserted-by":"publisher","DOI":"10.1016\/j.avb.2015.05.009"},{"key":"bibr10-1461444818782702","doi-asserted-by":"publisher","DOI":"10.1002\/ab.21609"},{"key":"bibr11-1461444818782702","unstructured":"Crosse S, Williams B, Hagen CA, et al. (2011) Prevalence and implementation fidelity of research-based prevention programs in public schools. Final report. 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