51 research outputs found

    Reported theory use by digital alcohol interventions and association with effectiveness: meta-regression

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    Background: Applying theory to the design and evaluation of interventions is likely to increase effectiveness and improve the evidence base from which future interventions are developed, though few interventions report this. Objective: The aim of this paper was to assess how digital interventions to reduce hazardous and harmful alcohol consumption report the use of theory in their development and evaluation, and whether reporting of theory use is associated with intervention effectiveness. Methods: Randomized controlled trials were extracted from a Cochrane review on digital interventions for reducing hazardous and harmful alcohol consumption. Reporting of theory use within these digital interventions was investigated using the theory coding scheme (TCS). Reported theory use was analyzed by frequency counts and descriptive statistics. Associations were analyzed with meta-regression models. Results: Of 41 trials involving 42 comparisons, half did not mention theory (50% [21/42]), and only 38% (16/42) used theory to select or develop the intervention techniques. Significant heterogeneity existed between studies in the effect of interventions on alcohol reduction (I2=77.6%, P<.001). No significant associations were detected between reporting of theory use and intervention effectiveness in unadjusted models, though the meta-regression was underpowered to detect modest associations. Conclusions: Digital interventions offer a unique opportunity to refine and develop new dynamic, temporally sensitive theories, yet none of the studies reported refining or developing theory. Clearer selection, application, and reporting of theory use is needed to accurately assess how useful theory is in this field and to advance the field of behavior change theories

    Behaviour change techniques used in digital behaviour change interventions to reduce excessive alcohol consumption: a meta-regression

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    Background: Digital behavior change interventions (DBCIs) appear to reduce alcohol consumption, but greater understanding is needed of their mechanisms of action. // Purpose: To describe the behavior change techniques (BCTs) used in DBCIs and examine whether individual BCTs, the inclusion of more BCTs or more Control Theory congruent BCTs is associated with increased effectiveness. // Methods: Forty-one randomized control trials were extracted from a Cochrane review of alcohol reduction DBCIs and coded for up to 93 BCTs using an established and reliable method. Random effects unadjusted and adjusted meta-regression models were performed to assess associations between BCTs and intervention effectiveness. // Results: Interventions used a mean of 9.1 BCTs (range 1ā€“22), 23 different BCTs were used in four or more trials. Trials that used ā€œBehavior substitutionā€ (āˆ’95.112 grams per week [gpw], 95% CI: āˆ’162.90, āˆ’27.34), ā€œProblem solvingā€ (āˆ’45.92 gpw, 95% CI: āˆ’90.97, āˆ’0.87) and ā€œCredible sourceā€ (āˆ’32.09 gpw, 95% CI: āˆ’60.64, āˆ’3.55) were significantly associated with greater alcohol reduction than trials without these BCTs. The ā€œBehavior substitutionā€ result should be treated as preliminary because it was reported in only four trials, three of which were conducted by the same research group. ā€œFeedbackā€ was used in 98% of trials (n = 41); other Control Theory congruent BCTs were used less frequently: for example, ā€œGoal settingā€ 43% (n = 18) and ā€œSelf-monitoringā€ 29%, (n = 12). // Conclusions: ā€œBehavior substitution,ā€ ā€œProblem solving,ā€ and ā€œCredible sourceā€ were associated with greater alcohol reduction. Many BCTs were used infrequently in DBCIs, including BCTs with evidence of effectiveness in other domains, such as ā€œSelf-monitoringā€ and ā€œGoal setting.

    WOWnet: A Communication and Networking Model for Women

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    We interviewed members of Women Owning Woodlands network (WOWnet), an Extension program in Western Oregon and an ideal community to study how women communicate and network. We found that WOWnet women are involved in a variety of natural resource-based organizations. However, WOWnet is unusual because of its small-group, praxis-based approach. If more Extension and forestry organizations followed the WOWnet example of supporting women new to forestry and focusing more on women-centric knowledge, they can become more inclusive of women with diverse interests and backgrounds. Programming that incorporates women-centric knowledge has implications for Extension programs throughout the U.S. and elsewhere

    Effect of silane treatment of e-glass on the cross-linking kinetics of an epoxy resin

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    The primary focus of this study was to demonstrate that conventional reinforcing Eglass fibres can be used for in-situ monitoring of cross-linking reactions using evanescent wave spectroscopy. The effect of silane treatment on the cross-linking kinetics of a thermosetting resin is also presented.</p

    Effect of silane treatment of e-glass on the cross-linking kinetics of an epoxy resin

    No full text
    The primary focus of this study was to demonstrate that conventional reinforcing Eglass fibres can be used for in-situ monitoring of cross-linking reactions using evanescent wave spectroscopy. The effect of silane treatment on the cross-linking kinetics of a thermosetting resin is also presented.</p
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