Research Topics
| D M MurraySummaryAffiliation: University of Memphis Country: USA Publications
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Detail Information
Publications
Components of variance in a group-randomized trial analysed via a random-coefficients model: the Rapid Early Action for Coronary Treatment (REACT) trialD M Murray
Psychology Department, University of Memphis, Tennessee 38152 3230, USA
Stat Methods Med Res 9:117-33. 2000..We also examine the power of the trial as it would have been given a more traditional pretest-post-test design with analysis via a comparison of the net difference in condition means pretest vs post-test...- Intraclass correlation among measures related to cigarette use by adolescents: estimates from an urban and largely African American cohortDavid M Murray
Department of Psychology, The University of Memphis, TN 38152 3230, USA
Addict Behav 27:509-27. 2002..We show how those correlations can be reduced using regression adjustments and used to determine sample size for future school-based smoking prevention studies... - A comparison of permutation and mixed-model regression methods for the analysis of simulated data in the context of a group-randomized trialDavid M Murray
Department of Psychology, The University of Memphis, TN 38152 3230, USA
Stat Med 25:375-88. 2006..Binomial group- and member-level errors did not otherwise change the relative performance of the two methods with regard to confounding... 
Design and analysis of group-randomized trials: a review of recent methodological developmentsDavid M Murray
Department of Psychology, College of Arts and Sciences, University of Memphis, Memphis, TN, USA
Am J Public Health 94:423-32. 2004..We encourage investigators who conduct GRTs to become familiar with these developments and to collaborate with methodologists who can strengthen the design and analysis of their trials...- Intraclass correlation for measures from a middle school nutrition intervention study: estimates, correlates, and applicationsD M Murray
Department of Psychology, University of Memphis, Tennessee 38152 3230, USA
Health Educ Behav 28:666-79. 2001..The authors show how to use the estimates to determine sample size requirements for future studies... - School-level intraclass correlation for physical activity in adolescent girlsDavid M Murray
Department of Psychology, College of Arts and Sciences, University of Memphis, Memphis, TN 38152 3230, USA
Med Sci Sports Exerc 36:876-82. 2004..As a result, we conducted a substudy to estimate the school-level ICC for intensity-weighted minutes of MVPA measured using an accelerometer... - Statistical models appropriate for designs often used in group-randomized trialsD M Murray
Department of Psychology, University of Memphis, TN 38152 3230, USA
Stat Med 20:1373-85. 2001..The assumptions, strengths and weaknesses of each model are discussed... - Intraclass correlations from a community-based alcohol prevention study: the effect of repeat observations on the same communitiesD M Murray
Department of Psychology, University of Memphis, Tennessee 38152 3230, USA
J Stud Alcohol 61:881-90. 2000..We will also show how these estimates can be used to establish optimal sample sizes for GRTs to evaluate school- and community-based alcohol prevention programs... - The Memphis Girls' health Enrichment Multi-site Studies (GEMS): an evaluation of the efficacy of a 2-year obesity prevention program in African American girlsRobert C Klesges
Department of Preventive Medicine, University of Tennessee Health Science Center, 66 N Pauline Street, Memphis, TN 38105, USA
Arch Pediatr Adolesc Med 164:1007-14. 2010..To determine the efficacy of a 2-year obesity prevention program in African American girls... - History of sport participation in relation to obesity and related health behaviors in womenCatherine M Alfano
Center for Community Health, Department of Psychology, The University of Memphis, Tennessee 38119, USA
Prev Med 34:82-9. 2002..CONCLUSIONS: The results suggest that girls' participation in sports may lay the foundation for adult health and health behaviors and that sports participation could be an important component of obesity prevention programs... - Social desirability bias in self-reported dietary, physical activity and weight concerns measures in 8- to 10-year-old African-American girls: results from the Girls Health Enrichment Multisite Studies (GEMS)Lisa M Klesges
Department of Preventive Medicine, University of Tennessee Health Science Center, Memphis, 38163, USA
Prev Med 38:S78-87. 2004..Social desirability (SocD) may bias children's self-reported health behaviors and attitudes and confound relationships with health outcome measures... - Memphis Girls health Enrichment Multi-site Studies (GEMS): Phase 2: design and baselineRobert C Klesges
Department of Preventive Medicine, University of Tennessee Center for Health Sciences and St Jude Children s Research Hospital, Memphis, TN, USA
Contemp Clin Trials 29:42-55. 2008..The GEMS obesity prevention intervention targets improved diet and increased physical activity to reduce excessive weight gain in healthy African-American girls of ages 8-10... - Socioeconomic status, ethnicity, and health care access among young and healthy womenI C Scarinci
Center for Community Health, University of Memphis, Tennessee 38119, USA
Ethn Dis 11:60-71. 2001.... - Socioeconomic status, ethnicity, and environmental tobacco exposure among non-smoking femalesI C Scarinci
University of Memphis Center for Community Health, 5350 Popular Ave, Suite 675, Memphis, TN 38119, USA
Nicotine Tob Res 2:355-61. 2000..g., public education of the hazards of ETS exposure and awareness of existing tobacco-control laws and regulations)... - Child- and parent-targeted interventions: the Memphis GEMS pilot studyBettina M Beech
University of Memphis, Center for Community Health, Tennessee 38119, USA
Ethn Dis 13:S40-53. 2003..To assess the feasibility, acceptability, and outcomes of 2 versions of a culturally relevant, family-based intervention to prevent excess weight gain in pre-adolescent African-American girls... - Rapid progression to regular cigarette smoking among nonsmoking adolescents: interactions with gender and ethnicityJonathan L Blitstein
Department of Psychology, The University of Memphis, Memphis, TN 38152, USA
Prev Med 36:455-63. 2003.... - Methods to reduce the impact of intraclass correlation in group-randomized trialsDavid M Murray
University of Memphis, USA
Eval Rev 27:79-103. 2003..Investigators planning GRTs should obtain ICC estimates matched to their planned analysis so that they can size their studies properly... - Assessing intervention effects in a school-based nutrition intervention trial: which analytic model is most powerful?Jessica B Janega
Department of Psychology, University of Memphis
Health Educ Behav 31:756-74. 2004..The formulae may be applied to any dependent variable in any GRT given corresponding information for those variables on the parameters that define the formulae... - Assessing the most powerful analysis method for school-based intervention studies with alcohol, tobacco, and other drug outcomesJessica B Janega
Department of Psychology, The University of Memphis, 202 Psychology Building, 3693 Norriswood, Memphis, TN 38152 3230, USA
Addict Behav 29:595-606. 2004..These estimates will allow other researchers using these variables to plan their studies by performing a priori power analyses for any of four common analytic options... - Ethnic differences in predictors of adolescent smoking onset and escalation: a longitudinal study from 7th to 12th gradeLeslie A Robinson
Center for Health Promotion and Evaluation, Department of Psychology, The University of Memphis, TN 38152 3230, USA
Nicotine Tob Res 8:297-307. 2006..Overall, we found that, contrary to previous research, risk factors for smoking differed across ethnicity. Further, smoking onset appears to be shaped by forces different from those that accelerate consumption... - Environmental correlates of gambling behavior in urban adolescentsEmerson M Wickwire
Institute for Gambling Education and Research, Department of Psychology, The University of Memphis, Memphis, TN 38152 3230, USA
J Abnorm Child Psychol 35:179-90. 2007..Among girls, family support was positively related to gambling problems. Among boys, this relation was negative... - Empirically supported treatments or type I errors? Problems with the analysis of data from group-administered treatmentsScott A Baldwin
Department of Psychology, University of Memphis, Memphis, TN, USA
J Consult Clin Psychol 73:924-35. 2005..Of the 33 studies, 6-19 studies no longer had any significant results after correction. The authors end by providing recommendations for researchers planning group-administered treatment research... - The reliability and predictive value of adolescents' reports of initial reactions to smokingBrant W Riedel
Memphis City Schools Office of Research and Evaluation, Memphis, TN 38112, USA
Nicotine Tob Res 5:553-9. 2003..Participants who progressed from experimental to regular smoking from Time 1 to Time 2 were more likely to report relaxation as an initial reaction to smoking at Time 2 after denying relaxation at Time 1... - An evaluation of analysis options for the one-group-per-condition design. Can any of the alternatives overcome the problems inherent in this design?S P Varnell
University of Memphis, TN 38152 3230, USA
Eval Rev 25:440-53. 2001..Even so, this design still appears with surprising frequency. This article presents the results from a new simulation study that underscores the analytic problems associated with this design... - Predicting adolescents' intake of fruits and vegetablesLeslie A Lytle
Division of Epidemiology, University of Minnesota School of Public Health, Minneapolis, Minnesota, USA
J Nutr Educ Behav 35:170-5. 2003..To explore potential predictors of adolescents' fruit and vegetable intake by expanding on current theory and drawing from other adolescent research... - Are differences in exposure to a multicomponent school-based intervention associated with varying dietary outcomes in adolescents?Amanda S Birnbaum
Division of Epidemiology, University of Minnesota, Minneapolis 55454, USA
Health Educ Behav 29:427-43. 2002..Control students' choices remained stable. Future studies may investigate mechanisms for peer leaders' changes, maximizing curriculum effectiveness, and improving environmental interventions... - Survey development for assessing correlates of young adolescents' eatingAmanda S Birnbaum
Division of Epidemiology, University of Minnesota, Minneapolis 55454 1054, USA
Am J Health Behav 26:284-95. 2002..To describe the development and psychometric testing of a survey to assess multiple influences on young adolescents' eating behaviors... - Imputation of missing data when measuring physical activity by accelerometryDiane J Catellier
Department of Biostatistics, University of North Carolina, Chapel Hill, NC 27514 4145, USA
Med Sci Sports Exerc 37:S555-62. 2005..The fact that counts are not being recorded during periods in which the monitor is not worn means that many common estimators of daily physical activity are biased downward... - Analysis strategies for a community trial to reduce adolescent ATOD use: a comparison of random coefficient and ANOVA/ANCOVA modelsDavid M Murray
The Ohio State University, School of Public Health, B222 West 10th Avenue, Columbus, OH 43210, USA
Contemp Clin Trials 27:188-206. 2006..The two-stage pre-post mixed-model ANCOVA offers the best power for the primary outcomes and will provide adequate power for detection of modest but important intervention effects... - Sample size considerations for studies of intervention efficacy in the occupational settingDeAnn Lazovich
Division of Epidemiology, University of Minnesota, Minneapolis 55454, USA
Ann Occup Hyg 46:219-27. 2002..The methodology is widely applicable and not limited to the context of wood dust reduction... - Influencing healthful food choices in school and home environments: results from the TEENS studyLeslie A Lytle
Division of Epidemiology, University of Minnesota, 1300 S 2nd Street, Suite 300, Minneapolis, MN 55454, USA
Prev Med 43:8-13. 2006..This research is part of the TEENS study, a school-based intervention study... - Physical activities in adolescent girls: variability in energy expenditureKarin A Pfeiffer
Department of Exercise Science, Arnold School of Public Health, University of South Carolina, Columbia, South Carolina 29208, USA
Am J Prev Med 31:328-31. 2006..The purpose of this study was to describe the variability in energy expenditure for selected physical activities among adolescent girls... - Sizing a trial to alter the trajectory of health behaviours: methods, parameter estimates, and their applicationDavid M Murray
Division of Epidemiology, School of Public Health, The Ohio State University, B222 Starling Loving Hall, 320 West 10th Street, Columbus, OH 43210, USA
Stat Med 26:2297-316. 2007..We provide estimates for the parameters required for those calculations for a number of adolescent health behaviours. We also show how the estimates can be used to plan a future trial... - Psychosocial correlates of physical activity and sedentary leisure habits in young adolescents: the Teens Eating for Energy and Nutrition at School studyKathryn H Schmitz
Division of Epidemiology, University of Minnesota, 1300 South 2nd Street, Suite 300, Minneapolis, MN 55454-1015, USA
Prev Med 34:266-78. 2002..Development of effective programs to increase PA and/or decrease SLH in young adolescents should be based on a clear understanding of the determinants of these behaviors... - Improving colorectal cancer screening by using community volunteers: results of the Carolinas cancer education and screening (CARES) projectMira L Katz
Health Behavior and Health Promotion, College of Public Health, and Comprehensive Cancer Center, The Ohio State University, Columbus, Ohio 43210, USA
Cancer 110:1602-10. 2007.... - Advances and controversies in the design of obesity prevention trialsJune Stevens
Department of Nutrition, CB 7461, University of North Carolina, Chapel Hill, NC 27599, USA
Obesity (Silver Spring) 15:2163-70. 2007..Attention to design issues will ultimately lead to more successful, cost-effective randomized trials, and more rapid movement toward efficacious and effective obesity prevention programs... - Promoting physical activity in middle school girls: Trial of Activity for Adolescent GirlsLarry S Webber
Department of Biostatistics, Tulane University, New Orleans, Louisiana 70112, USA
Am J Prev Med 34:173-84. 2008..Physical activity is important for weight control and good health; however, activity levels decline in the adolescent years, particularly in girls... 
Depressive symptoms and physical activity in adolescent girlsCarolyn C Johnson
Tulane University School of Public Health and Tropical Medicine, New Orleans, LA 70112, USA
Med Sci Sports Exerc 40:818-26. 2008..To evaluate the relationship between depressive symptoms and physical activity in a geographically and ethnically diverse sample of sixth-grade adolescent girls...- Individually randomized group treatment trials: a critical appraisal of frequently used design and analytic approachesSherri L Pals
Division of HIV AIDS Prevention, National Center for HIV, Viral Hepatitis, STD and TB Prevention, MS E 45, Centers for Disease Control and Prevention, 1600 Clifton Rd, Atlanta, GA 30333, USA
Am J Public Health 98:1418-24. 2008.... - Increasing the degrees of freedom in future group randomized trials: the df* approachJonathan L Blitstein
Psychology of Health Behavior Program, RTI International
Eval Rev 29:268-86. 2005..The authors discuss the circumstances under which this strategy will be most helpful and the risks associated with conducting smaller studies... - Increasing the degrees of freedom in existing group randomized trials: the df* approachJonathan L Blitstein
Psychology of Health Behavior Program, RTI International
Eval Rev 29:241-67. 2005..The authors discuss the limitations of this approach and the circumstances in which it is likely to be helpful... - Design of the Trial of Activity in Adolescent Girls (TAAG)June Stevens
University of North Carolina at Chapel Hill, USA
Contemp Clin Trials 26:223-33. 2005..The TAAG study addresses an important health behavior, and also advances the field of group-randomized trials through the use of a study design and analysis plan tailored to serve the main study hypothesis... - Prevalence and correlates of depressive symptoms in young adolescentsMartha Y Kubik
School of Nursing, University of Minnesota, Minneapolis, MN 55455, USA
Am J Health Behav 27:546-53. 2003..To assess prevalence of elevated depressive symptoms in young adolescents and examine associations between symptoms and sociodemographic and behavioral factors... - Design, implementation, and quality control in the Pathways American-Indian multicenter trialElaine J Stone
University of New Mexico, Department of Physical Performance and Development, Johnson Center Room 1150, Albuquerque, NM 87131, USA
Prev Med 37:S13-23. 2003..Pathways was the first multicenter American-Indian school-based study to test the effectiveness of an obesity prevention program promoting healthy eating and physical activity... - The impact of the Pathways intervention on psychosocial variables related to diet and physical activity in American Indian schoolchildrenJune Stevens
Department of Nutrition, School of Public Health, University of North Carolina, Chapel Hill, NC 27599 7400, USA
Prev Med 37:S70-9. 2003..The purpose of this study was to examine the impact of the Pathways intervention on pychosocial variables related to physical activity and diet in American Indian children... - Design and analysis of group-randomized trials: a review of recent practicesSherri P Varnell
NorthropGrumman Mission Systems, Atlanta, GA, USA
Am J Public Health 94:393-9. 2004..Hence increased vigilance is needed to ensure that appropriate methods for GRTs are employed and that results based on inappropriate methods are not published... - Relationships among smoking status, ethnicity, socioeconomic indicators, and lifestyle variables in a biracial sample of womenJennifer M Watson
University of Mississippi Medical Center, School of Medicine, Department of Psychiatry and Human Behavior, Jackson, MS 39216 4505, USA
Prev Med 37:138-47. 2003..Little is known about the unique patterns of smoking, risk factors, and correlates of quitting in Black versus White women of child-bearing age... - School functioning and violent behavior among young adolescents: a contextual analysisAmanda S Birnbaum
Division of Epidemiology, University of Minnesota, Minneapolis, MN 55454, USA
Health Educ Res 18:389-403. 2003.... - Evaluating the Lions-Quest "Skills for Adolescence" drug education program. Second-year behavior outcomesMarvin Eisen
The Urban Institute, 2100 M Street, Northwest, Washington, DC 20037, USA
Addict Behav 28:883-97. 2003.... - School-based approaches to affect adolescents' diets: results from the TEENS studyLeslie A Lytle
Division of Epidemiology, University of Minnesota, Minneapolis, 55454, USA
Health Educ Behav 31:270-87. 2004..In addition, future work may consider the use of peer leaders, more intensive teacher training, ongoing formative assessment, and the testing of more powerful environmental change intervention strategies... - School-level intraclass correlation for physical activity in sixth grade girlsDavid M Murray
Division of Epidemiology, School of Public Health, The Ohio State University, Columbus, 43210, USA
Med Sci Sports Exerc 38:926-36. 2006..We report the school-level intraclass correlation (ICC) for MVPA from the TAAG baseline survey of sixth grade girls and describe the relationship between the schedule of data collection and the ICC... - Predictors of violent behavior in an early adolescent cohort: similarities and differences across gendersJonathan L Blitstein
RTI International, Center for Health Promotion Research, Research Triangle Park, North Carolina 27709, USA
Health Educ Behav 32:175-94. 2005..Additional predictors of violent behavior specific to girls included both risk and protective factors... - Physical activity in relation to all-site and lung cancer incidence and mortality in current and former smokersCatherine M Alfano
Fred Hutchinson Cancer Research Center, 1100 Fairview Avenue North, M3-B232, Seattle, WA 98109-1024, USA
Cancer Epidemiol Biomarkers Prev 13:2233-41. 2004..Prospective studies using more sophisticated measures of physical activity assessed at multiple time points during follow-up are needed to corroborate these associations... - Evaluating the Lions-Quest "Skills for Adolescence" drug education program: first-year behavior outcomesMarvin Eisen
The Urban Institute, NW Washington, DC 20037, USA
Addict Behav 27:619-32. 2002..For baseline users, there were three significant SFA delays in transition to experimental or recent use of more "advanced" substances: drinking to smoking, drinking to marijuana use, and binge drinking to marijuana... - Defining accelerometer thresholds for activity intensities in adolescent girlsMargarita S Treuth
Center for Human Nutrition, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD 21205, USA
Med Sci Sports Exerc 36:1259-66. 2004.... - Objectively assessed associations between physical activity and body composition in middle-school girls: the Trial of Activity for Adolescent GirlsJune Stevens
Department of Nutrition, School of Public Health, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599, USA
Am J Epidemiol 166:1298-305. 2007..More population-based research using objective physical activity and body composition measurements is needed to make evidence-based physical activity recommendations for US youth... - Sagittal plane kinematics of a mobile-bearing unicompartmental knee arthroplasty at 10 years: a comparative in vivo fluoroscopic analysisAndrew J Price
Nuffield Orthopaedic Centre, Headington, Oxford, UK
J Arthroplasty 19:590-7. 2004..The results suggest that a normal pattern of sagittal plane knee kinematics exists following Oxford medial UKA and imply that anterior cruciate ligament function is maintained in the long term... - Design and analysis of group-randomized trials in cancer: a review of current practicesDavid M Murray
Division of Epidemiology, College of Public Health, The Ohio State University, Columbus, OH, USA
J Natl Cancer Inst 100:483-91. 2008..Previous reviews have identified problems in the design and analysis of group-randomized trials in a number of areas. Similar problems may exist in cancer research, but there have been no comprehensive reviews... - Evaluation of the American Stop Smoking Intervention Study (ASSIST): a report of outcomesFrances A Stillman
Institute for Global Tobacco Control, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD 21205, USA
J Natl Cancer Inst 95:1681-91. 2003..To evaluate ASSIST, we compared changes in adult smoking prevalence, per capita cigarette consumption, and tobacco control policies between the 17 ASSIST states and the 33 non-ASSIST states and the District of Columbia... - Associations between perceived family meal environment and parent intake of fruit, vegetables, and fatKerri N Boutelle
Division of Epidemiology, University of Minnesota School of Public Health, Minneapolis MN 55454, USA
J Nutr Educ Behav 35:24-9. 2003..To describe the family mealtime environment and assess associations with adult fruit, vegetable, and fat intake... - The SUCCESS project: the effect of program format and incentives on participation and cessation in worksite smoking cessation programsDeborah J Hennrikus
Division of Epidemiology, University of Minnesota School of Public Health, Minneapolis, 55454 1054, USA
Am J Public Health 92:274-9. 2002..This study examined the effect of program format and incentives on participation and cessation in worksite smoking cessation programs...