Ryan Martin

East Carolina University, Гринвилл, North Carolina, United States

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Publications (4)4.22 Total impact

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    ABSTRACT: The misuse of prescription stimulants (MPS) is an emergent adverse health behavior among undergraduate college students. However, current research on MPS is largely atheoretical. The purpose of this study was to validate a survey to assess MPS-related theory of planned behavior (TPB) constructs (i.e. attitudes, subjective norms, and perceived behavioral control) and determine the relationship between these constructs, MPS-related risk factors (e.g. gender and class status), and current MPS (i.e. past 30 days use) among college students. Participants (N = 978, 67.8% female and 82.9% Caucasian) at a large public university in the southeastern USA completed a survey assessing MPS and MPS-related TPB constructs during fall 2010. To examine the relationship between MPS-related TPB constructs and current MPS, we conducted (1) confirmatory factor analyses to validate that our survey items assessed MPS-related TPB constructs and (2) a series of regression analyses to examine associations between MPS-related TPB constructs, potential MPS-related risk factors, and MPS in this sample. Our factor analyses indicated that the survey items assessed MPS-related TPB constructs and our multivariate logistic regression analysis indicated that perceived behavioral control was significantly associated with current MPS. In addition, analyses found that having a prescription stimulant was a protective factor against MPS when the model included MPS-related TPB variables.
    Psychology Health and Medicine 04/2014; · 1.53 Impact Factor
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    ABSTRACT: Objective: This study examined the feasibility of using wireless mobile devices (MDs) to collect daily alcohol information among college students, in particular examining feasibility in the context of costs associated with the use of wireless MDs. This study reports on practical aspects of using MDs to collect alcohol data, including compliance, technical success, user preferences for completing MD-based assessments, and cost. Setting: The study took place at a large, public university in the south-eastern United States. Design: A two-group, randomized design was used. A daily assessment of alcohol use administered using wireless MDs was completed by a group of college students (n=86) for 30 days and compared to a paper-based (PB) daily assessment of alcohol use completed by a second group of college students (n=83) over the same time period. Results: Completion rates for the MD assessment (85.8 per cent) were comparable to the PB assessment (97.6 per cent) given the differences in mode of administration. Participants found the MDs easy to use (83.7 per cent), easy to read (94.2 per cent), and on average liked completing the daily MD assessment (M 4.47, SD 1.16) significantly more than respondents liked completing the PB assessment (M 3.88, SD 1.08; t [164] 3.84, p < 0.001). Few participants in the MD group reported that they were uncomfortable (9.3 per cent) or nervous (2.3 per cent) completing daily assessments using the MDs. Conclusion: Results indicate that the feasibility of using MDs for data collection may be influenced by user preferences and should be tested on different health behaviours in more diverse populations.
    Health Education Journal 09/2010; 69:311-320. · 0.73 Impact Factor
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    ABSTRACT: This study used a two-group randomized design to assess the validity of measuring self-reported alcohol consumption among college students using the Handheld Assisted Network Diary (HAND), a daily diary assessment administered using wireless mobile devices. A convenience sample of college students was recruited at a large, public university in the southeastern United States and randomized into two groups. A randomly assigned group of 86 students completed the daily HAND assessment during the 30-day study and a Timeline Followback (TLFB) at 30-day follow-up. A randomly assigned group of 82 students completed the paper-and-pencil Daily Social Diary (DSD) over the same study period. Data from the daily HAND assessment were compared with the TLFB completed at follow-up by participants who completed the HAND using 95% limits of agreement analysis. Furthermore, individual growth models were used to examine differences between the HAND and DSD by comparing the total drinks, drinking days, and drinks per drinking day captured by the two assessments over the study period. Results suggest that the HAND captured similar levels of alcohol use compared with the TLFB completed at follow-up by the same participants. In addition, comparisons of the two study groups suggest that, controlling for baseline alcohol use and demographics, the HAND assessment captured similar levels of total drinks, drinking days, and drinks per drinking day as the paper-and-pencil DSD. The study findings support the validity of wireless mobile devices as a daily assessment of alcohol use among college students.
    Journal of studies on alcohol and drugs 10/2009; 70(5):771-5. · 1.68 Impact Factor
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    ABSTRACT: Although large scale national surveys provide extensive data about the nature and frequency of alcohol use among American college students, survey research on alcohol does not provide detailed information on the context of college alcohol consumption that may contribute to drinking-related negative consequences. This research sought to gather specific information on the contexts in which alcohol use occurs among college students through a series of focus groups. Participants described specific incidents of heavy drinking, alcohol consumption patterns, drinking locations and environments, co-drinkers, and associated consequences experienced from drinking. Results indicated that participants often experienced negative consequences from alcohol use if they consumed shots of hard liquor or if they participated in drinking games and/or "pre-gamed." In addition, negative consequences were more common during specific events/special occasions. An implication of these findings is the possibility of reducing negative alcohol-related consequences by tailoring health promotion/harm reduction efforts specifically toward excessive drinking of hard liquor and excessive "pre-gaming."
    Journal of Drug Education 02/2008; 38(4):377-87. · 0.28 Impact Factor