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Validation of the Social Networking Activity Intensity Scale among Junior Middle School Students in China
Li, JB1,2; Lau, JTF1,3; Mo, PKH1,3; Su, XF1,3; Wu, AMS4; Tang, J5; Qin, ZG5
Source PublicationPLOS ONE


Online social networking use has been integrated into adolescents' daily life and the intensity of online social networking use may have important consequences on adolescents' well-being. However, there are few validated instruments to measure social networking use intensity. The present study aims to develop the Social Networking Activity Intensity Scale (SNAIS) and validate it among junior middle school students in China. 


A total of 910 students who were social networking users were recruited from two junior middle schools in Guangzhou, and 114 students were retested after two weeks to examine the test-retest reliability. The psychometrics of the SNAIS were estimated using appropriate statistical methods. 


Two factors, Social Function Use Intensity (SFUI) and Entertainment Function Use Intensity (EFUI), were clearly identified by both exploratory and confirmatory factor analyses. No ceiling or floor effects were observed for the SNAIS and its two subscales. The SNAIS and its two subscales exhibited acceptable reliability (Cronbach's alpha = 0.89, 0.90 and 0.60, and test-retest Intra-class Correlation Coefficient = 0.85, 0.87 and 0.67 for Overall scale, SFUI and EFUI subscale, respectively, p<0.001). As expected, the SNAIS and its subscale scores were correlated significantly with emotional connection to socialnetworking, social networking addiction, Internet addiction, and characteristics related to social networking use. 


The SNAIS is an easily self-administered scale with good psychometric properties. It would facilitate more research in this field worldwide and specifically inthe Chinese population.

KeywordInternet Addiction College-students Site Use Facebook Friends Fit Indexes Online Health Adolescents Association Depression
Indexed BySSCI
WOS Research AreaScience & Technology - Other Topics
WOS SubjectMultidisciplinary Sciences
WOS IDWOS:000386711100055
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Cited Times [WOS]:13   [WOS Record]     [Related Records in WOS]
Document TypeJournal article
CollectionFaculty of Social Sciences
Affiliation1.Chinese Univ Hong Kong, Div Behav Hlth & Hlth Promot, Jockey Club Sch Publ Hlth & Primary Care, Fac Med, Hong Kong, Hong Kong, Peoples R China
2.Sun Yat Sen Univ, Ctr Canc, State Key Lab Oncol South China, Collaborat Innovat Ctr Canc Med,Dept Clin Res, Guangzhou, Guangdong, Peoples R China
3.Chinese Univ Hong Kong, Shenzhen Res Inst SZRI, Shenzhen, Peoples R China
4.Univ Macau, Fac Social Sci, Dept Psychol, Macau, Peoples R China
5.Ctr Hlth Educ Guangdong Prov, Guangzhou, Guangdong, Peoples R China
Recommended Citation
GB/T 7714
Li, JB,Lau, JTF,Mo, PKH,et al. Validation of the Social Networking Activity Intensity Scale among Junior Middle School Students in China[J]. PLOS ONE,2016,11(10).
APA Li, JB,Lau, JTF,Mo, PKH,Su, XF,Wu, AMS,Tang, J,&Qin, ZG.(2016).Validation of the Social Networking Activity Intensity Scale among Junior Middle School Students in China.PLOS ONE,11(10).
MLA Li, JB,et al."Validation of the Social Networking Activity Intensity Scale among Junior Middle School Students in China".PLOS ONE 11.10(2016).
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