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Marcia S. Marx, Jiska Cohen-Mansfield and Jack M. Guralnik

The article describes the process of identifying 100 community-dwelling elderly adults at risk for physical disability, yet not functionally disabled, for participation in a research project to develop appropriate exercise programs for at-risk elderly. Over a period of 14 months, initial contact was made with 941 older adults, 11% of whom (101 people) were eligible for and willing to complete all stages of the study protocol. The most successful recruitment strategies were a mass mailing followed by a telephone call and advertising in a newspaper with a large circulation (rather than a local paper). Aspects of the recruitment and retention of study participants are discussed.

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Sasha A. Fleary, Robin Mehl and Claudio Nigg

, biannually, annually) to improve participantsretention and better map how behaviors change over time in Hawaiian youth. Conclusions Childhood and adolescent PA predicts PA in young adulthood, whereas childhood nutrition behaviors predict behaviors in adolescence, and adolescent nutrition behaviors predict young

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Samantha M. Gray, Joan Wharf Higgins and Ryan E. Rhodes

randomized participants divided by the number of screened participants. Intervention adherence Adherence was measured by participant attendance rates in the two intervention arms of the study; attendance was taken within the first 10 min of each session. Retention Participant retention was calculated at 6

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Heather J. Leach, Katie B. Potter and Mary C. Hidde

design, high adherence to the 8-week exercise intervention, and high level of participant retention at the 3-month follow-up. The main limitation of this pilot study was the small sample size. Large SDs suggest wide variation, which limited our ability to draw conclusions about efficacy. Conclusions The

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Lukas K. Gaffney, Oscar D. Lozano, Adriana Almanza, Nubia Ruiz, Alejandro Mantero and Mark Stoutenberg

participant retention and adherence. HEVS program evaluation would also be enhanced by including the assessment of participant baseline physical activity levels. As currently structured, the proportion of participants meeting physical activity guidelines prior to enrollment is not assessed. In addition

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Roger J. Paxton, Jeri E. Forster, Matthew J. Miller, Kristine L. Gerron, Jennifer E. Stevens-Lapsley and Cory L. Christiansen

-to-face group meetings. Feasibility Assessment Feasibility was assessed through participant retention (percentage of participants finishing 12-week involvement; mean ± SD), intervention adherence (percentage days of successful real-time physical activity data collection in physical activity feedback; mean ± SD

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Rob J.H. van Bree, Catherine Bolman, Aart N. Mudde, Maartje M. van Stralen, Denise A. Peels, Hein de Vries and Lilian Lechner

baseline participants, retention rates at 3, 6, and 12 months were 58%, 55%, and 59% respectively. Measures Study 1 Data were collected by means of extensive questionnaires at baseline and at 3, 6, and 12 months after baseline measurement (see van Stralen et al., 2008 , 2011 for details). For the

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Lauren T. Ptomey, Eric D. Vidoni, Esteban Montenegro-Montenegro, Michael A. Thompson, Joseph R. Sherman, Anna M. Gorczyca, Jerry L. Greene, Richard A. Washburn and Joseph E. Donnelly

testing study, and therefore, no inferential statistical test should be conducted” ( Eldridge et al., 2016 ). All analyses were conducted using SAS (version 9.4; SAS Institute Inc., Cary, NC). Results Participants/Retention/Safety A total of nine adults with AD/Caregiver dyads enrolled in the study, and

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Katherine A. Tamminen, Kaleigh Ferdinand Pennock and Courtney Braun

from Time 1 to Time 2. We were also unable to collect follow-up surveys from a sufficient number of athletes at Time 3 to conduct any additional analyses; thus, collecting data in person with youth athletes appears to be a more effective means of ensuring adequate participant retention. As a result of

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Brendan Dwyer, Joshua M. Lupinek and Rebecca M. Achen

fantasy football, and participant retention from a female perspective could be an important line of inquiry. Finally, this study was limited to football. There are a number of other forms of fantasy games, including activities that do not include any form of sport such as Fantasy Oscars and ABC’s The