| Which intervention characteristics are related to more exposure to internet-delivered healthy lifestyle promotion interventions? A systematic review W Brouwer, W Kroeze, R Crutzen, J de Nooijer, NK de Vries, J Brug, ... J Med Internet Res 13 (1), e2, 2011 | 491 | 2011 |
| Online prevention aimed at lifestyle behaviors: a systematic review of reviews LFM Kohl, R Crutzen, NK de Vries Journal of medical Internet research 15 (7), e146, 2013 | 357 | 2013 |
| A simple formula for the calculation of sample size in pilot studies W Viechtbauer, L Smits, D Kotz, L Budé, M Spigt, J Serroyen, R Crutzen Journal of clinical epidemiology 68 (11), 1375-1379, 2015 | 253 | 2015 |
| Everything should be as simple as possible, but no simpler: towards a protocol for accumulating evidence regarding the active content of health behaviour change interventions GJY Peters, M de Bruin, R Crutzen Health Psychology Review 9 (1), 1-14, 2015 | 193 | 2015 |
| Strategies to facilitate exposure to internet-delivered health behavior change interventions aimed at adolescents or young adults: a systematic review R Crutzen, J de Nooijer, W Brouwer, A Oenema, J Brug, NK de Vries Health Education & Behavior 38 (1), 49-62, 2011 | 175 | 2011 |
| Characteristics of visitors and revisitors to an Internet-delivered computer-tailored lifestyle intervention implemented for use by the general public W Brouwer, A Oenema, H Raat, R Crutzen, J de Nooijer, NK de Vries, ... Health education research 25 (4), 585-595, 2010 | 165 | 2010 |
| An artificially intelligent chat agent that answers adolescents' questions related to sex, drugs, and alcohol: an exploratory study R Crutzen, GJY Peters, SD Portugal, EM Fisser, JJ Grolleman Journal of Adolescent Health 48 (5), 514-519, 2011 | 159 | 2011 |
| Scale quality: alpha is an inadequate estimate and factor-analytic evidence is needed first of all R Crutzen, GJY Peters Health Psychology Review 11 (3), 242-247, 2017 | 157 | 2017 |
| Measuring engagement in eHealth and mHealth behavior change interventions: viewpoint of methodologies CE Short, A DeSmet, C Woods, SL Williams, C Maher, A Middelweerd, ... Journal of medical Internet research 20 (11), e9397, 2018 | 134 | 2018 |
| An exploration of factors related to dissemination of and exposure to internet-delivered behavior change interventions aimed at adults: a Delphi study approach W Brouwer, A Oenema, R Crutzen, J De Nooijer, N De Vries, J Brug Journal of medical Internet research 10 (2), e10, 2008 | 121 | 2008 |
| Social desirability and self-reported health risk behaviors in web-based research: three longitudinal studies R Crutzen, AS Göritz BMC public health 10 (1), 720, 2010 | 119 | 2010 |
| Using Google Analytics as a process evaluation method for Internet-delivered interventions: an example on sexual health R Crutzen, JL Roosjen, J Poelman Health promotion international 28 (1), 36-42, 2013 | 113 | 2013 |
| Teenage pregnancy rates and associations with other health risk behaviours: a three-wave cross-sectional study among South African school-going adolescents K Jonas, R Crutzen, B van den Borne, R Sewpaul, P Reddy Reproductive health 13 (1), 50, 2016 | 110 | 2016 |
| Internet-delivered interventions aimed at adolescents: a Delphi study on dissemination and exposure R Crutzen, J de Nooijer, W Brouwer, A Oenema, J Brug, NK de Vries Health Education Research 23 (3), 427-439, 2008 | 107 | 2008 |
| How can interventions increase motivation for physical activity? A systematic review and meta-analysis K Knittle, J Nurmi, R Crutzen, N Hankonen, M Beattie, SU Dombrowski Health psychology review 12 (3), 211-230, 2018 | 99 | 2018 |
| Investigating predictors of visiting, using, and revisiting an online health-communication program: a longitudinal study J Van't Riet, R Crutzen, H De Vries Journal of Medical Internet Research 12 (3), e1345, 2010 | 97 | 2010 |
| What makes people decide to visit and use an internet-delivered behavior-change intervention?: A qualitative study among adults W Brouwer, A Oenema, R Crutzen, J de Nooijer, NK de Vries, J Brug Health Education 109 (6), 460-473, 2009 | 89 | 2009 |
| Use of the stepped wedge design cannot be recommended: A critical appraisal and comparison with the classic cluster randomized controlled trial design D Kotz, M Spigt, ICW Arts, R Crutzen, W Viechtbauer Journal of clinical epidemiology 65 (12), 1249-1252, 2012 | 88 | 2012 |
| Differential attrition in health behaviour change trials: A systematic review and meta-analysis R Crutzen, W Viechtbauer, M Spigt, D Kotz Psychology & health 30 (1), 122-134, 2015 | 83 | 2015 |
| The role of user control in adherence to and knowledge gained from a website: randomized comparison between a tunneled version and a freedom-of-choice version R Crutzen, D Cyr, NK de Vries Journal of medical Internet research 14 (2), e45, 2012 | 82 | 2012 |
nanne de vriesprofessor of health promotion, maastricht universityVerified email at maastrichtuniversity.nl
