Hidden Populations, Online Purposive Sampling, and External Validity: Taking off the Blindfold

被引:118
作者
Barratt, Monica J. [1 ]
Ferris, Jason A. [2 ]
Lenton, Simon [3 ]
机构
[1] Curtin Univ, Fac Hlth Sci, Natl Drug Res Inst, Fitzroy, Vic 3065, Australia
[2] Univ Queensland, Social Sci Res Inst, St Lucia, Qld, Australia
[3] Curtin Univ, Fac Hlth Sci, Natl Drug Res Inst, Bentley, WA, Australia
关键词
hidden populations; hard-to-reach; representativeness; sampling; Internet; DRUG-USE; NONRESPONSE BIAS; INTERNET; ALCOHOL; USERS; EFFICACY;
D O I
10.1177/1525822X14526838
中图分类号
Q98 [人类学];
学科分类号
030303 ;
摘要
Online purposive samples have unknown biases and may not strictly be used to make inferences about wider populations, yet such inferences continue to occur. We compared the demographic and drug use characteristics of Australian ecstasy users from a probability (National Drug Strategy Household Survey, n = 726) and purposive sample (online survey conducted as part of a mixed-methods study of online drug discussion, n = 753) using nonparametric (bootstrap) and meta-analysis techniques. We found significant differences in demographics and drug use prevalence. Ideally, online purposive samples of hidden populations should be interpreted in conjunction with probability samples and ethnographic fieldwork.
引用
收藏
页码:3 / 21
页数:19
相关论文
共 47 条
[1]  
[Anonymous], MARKETS METHODS MESS
[2]  
Australian Institute of Health and Welfare, 2008, 2007 NAT DRUG STRAT
[3]  
Australian Institute of Health and Welfare (AIHW), 2002, 2001 NAT DRUG STRAT
[4]  
Australian Institute of Health andWelfare (AIHW), 2004, 2004 NAT DRUG STRAT
[5]  
Barratt M.J., 2010, INT J INTERNET RES E, V3, P69
[6]   The efficacy of interviewing young drug users through online chat [J].
Barratt, Monica J. .
DRUG AND ALCOHOL REVIEW, 2012, 31 (04) :566-572
[7]   Innovative Recruitment Using Online Networks: Lessons Learned From an Online Study of Alcohol and Other Drug Use Utilizing a Web-Based, Respondent-Driven Sampling (webRDS) Strategy [J].
Bauermeister, Jose A. ;
Zimmerman, Marc A. ;
Johns, Michelle M. ;
Glowacki, Pietreck ;
Stoddard, Sarah ;
Volz, Erik .
JOURNAL OF STUDIES ON ALCOHOL AND DRUGS, 2012, 73 (05) :834-838
[8]  
Bock T, 2002, INT J MARKET RES, V44, P235
[9]   Identifying Multiple Submissions in Internet Research: Preserving Data Integrity [J].
Bowen, Anne M. ;
Daniel, Candice M. ;
Williams, Mark L. ;
Baird, Grayson L. .
AIDS AND BEHAVIOR, 2008, 12 (06) :964-973
[10]  
BRAUNSTEIN MS, 1993, AIDS EDUC PREV, V5, P131