Author
Stephen Sutton
Other affiliations: Cooperative Research Centre, James Cook University, Atlantic Salmon Federation ...read more
Bio: Stephen Sutton is an academic researcher from University of Cambridge. The author has contributed to research in topics: Randomized controlled trial & Smoking cessation. The author has an hindex of 70, co-authored 412 publications receiving 20781 citations. Previous affiliations of Stephen Sutton include Cooperative Research Centre & James Cook University.
Papers published on a yearly basis
Papers
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TL;DR: In this paper, the authors evaluate the performance of these models in predicting and explaining intentions and behavior, and discuss the distinction between prediction and explanation, the different standards of comparison against which predictive performance can be judged, and the use of percentage of variance explained as a measure of effect size.
Abstract: Meta-analyses of research using the theory of reasoned action (TRA) and the theory of planned behavior (TPB) show that these models explain on average between 40% and 50% of the variance in intention, and between 19% and 38% of the variance in behavior. This paper evaluates the performance of these models in predicting and explaining intentions and behavior. It discusses the distinction between prediction and explanation, the different standards of comparison against which predictive performance can be judged, the use of percentage of variance explained as a measure of effect size, and presents 9 reasons why the models do not always predict as well as we would like them to do.
1,069 citations
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TL;DR: The most commonly used design, which involves cross-sectional comparisons of people believed to be in different stages, is shown to have only limited value for testing whether behavior change follows a stage process.
Abstract: Despite growing interest in stage theories of health behavior, there is considerable confusion in the literature concerning the essential characteristics of stage theories and the manner in which such theories should be tested. In this article, the 4 key characteristics of a stage theory-a category system, an ordering of categories, similar barriers to change within categories, and different barriers to change between categories--are discussed in detail. Examples of stage models of health behavior also are described. Four major types of research designs that might be used for testing stage theories are examined, including examples from the empirical literature. The most commonly used design, which involves cross-sectional comparisons of people believed to be in different stages, is shown to have only limited value for testing whether behavior change follows a stage process.
692 citations
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TL;DR: In this article, the authors develop an integrative perspective on catch-and-release (C&R) by drawing on historical, philosophical, socio-psychological, biological, and managerial insights and perspectives.
Abstract: Most research on catch-and-release (C&R) in recreational fishing has been conducted from a disciplinary angle focusing on the biological sciences and the study of hooking mortality after release. This hampers understanding of the complex and multifaceted nature of C&R. In the present synopsis, we develop an integrative perspective on C&R by drawing on historical, philosophical, socio-psychological, biological, and managerial insights and perspectives. Such a perspective is helpful for a variety of reasons, such as 1) improving the science supporting successful fisheries management and conservation, 2) facilitating dialogue between managers, anglers, and other stakeholders, 3) minimizing conflict potentials, and 4) paving the path toward sustainable recreational fisheries management. The present work highlights the array of cultural, institutional, psychological, and biological factors and dimensions involved in C&R. Progress toward successful treatment of C&R might be enhanced by acknowledging the complex...
594 citations
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TL;DR: Promotion of physical activity to sedentary adults recruited in primary care significantly increases physical activity levels at 12 months, as measured by self report, and there is insufficient evidence to recommend exercise referral schemes over advice or counselling interventions.
Abstract: Objectives To determine whether trials of physical activity promotion based in primary care show sustained effects on physical activity or fitness in sedentary adults, and whether exercise referral interventions are more effective than other interventions. Design Systematic review and meta-analysis of randomised controlled trials. Data sources Medline, CINAHL, PsycINFO, EMBASE, SPORTDiscus, Centre for Reviews and Dissemination, the Cochrane Library, and article reference lists. Review methods Review of randomised controlled trials of physical activity promotion in sedentary adults recruited in primary care, with minimum follow-up of 12 months, reporting physical activity or fitness (or both) as outcomes, and using intention to treat analyses. Two reviewers independently assessed studies for inclusion, appraised risk of bias, and extracted data. Pooled effect sizes were calculated using a random effects model. Results We included 15 trials (n=8745). Most interventions took place in primary care, included health professionals in delivery, and involved advice or counselling given face to face or by phone (or both) on multiple occasions. Only three trials investigated exercise referral. In 13 trials presenting self reported physical activity, we saw small to medium positive intervention effects at 12 months (odds ratio 1.42, 95% confidence interval 1.17 to 1.73; standardised mean difference 0.25, 0.11 to 0.38). The number needed to treat with an intervention for one additional sedentary adult to meet internationally recommended levels of activity at 12 months was 12 (7 to 33). In four trials reporting cardiorespiratory fitness, a medium positive effect at 12 months was non-significant (standardised mean difference 0.51, −0.18 to 1.20). Three trials of exercise referral found small non-significant effects on self reported physical activity at 12 months (odds ratio 1.38; 0.98 to 1.95; standardised mean difference 0.20, −0.21 to 0.61). Conclusions Promotion of physical activity to sedentary adults recruited in primary care significantly increases physical activity levels at 12 months, as measured by self report. We found insufficient evidence to recommend exercise referral schemes over advice or counselling interventions. Primary care commissioners should consider these findings while awaiting further trial evaluation of exercise referral schemes and other primary care interventions, with longer follow-up and use of objective measures of outcome.
583 citations
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TL;DR: There was strong evidence for an association between older age and delay by patients, and strong evidence that marital status was unrelated to delays by Patients, and younger age and presentation with a breast symptom other than a lump were strong risk factors for delays by providers.
497 citations
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01 Jan 2016
TL;DR: The using multivariate statistics is universally compatible with any devices to read, allowing you to get the most less latency time to download any of the authors' books like this one.
Abstract: Thank you for downloading using multivariate statistics. As you may know, people have look hundreds times for their favorite novels like this using multivariate statistics, but end up in infectious downloads. Rather than reading a good book with a cup of tea in the afternoon, instead they juggled with some harmful bugs inside their laptop. using multivariate statistics is available in our digital library an online access to it is set as public so you can download it instantly. Our books collection saves in multiple locations, allowing you to get the most less latency time to download any of our books like this one. Merely said, the using multivariate statistics is universally compatible with any devices to read.
14,604 citations
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TL;DR: Reading a book as this basics of qualitative research grounded theory procedures and techniques and other references can enrich your life quality.
13,415 citations
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TL;DR: The Medical Research Council's evaluation framework (2000) brought welcome clarity to the task and now the council has updated its guidance.
Abstract: Evaluating complex interventions is complicated. The Medical Research Council9s evaluation framework (2000) brought welcome clarity to the task. Now the council has updated its guidance
8,896 citations
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TL;DR: A quantitative integration and review of research on the Theory of Planned Behaviour and the subjective norm, which found that intentions and self-predictions were better predictors of behaviour than attitude, subjective norm and PBC.
Abstract: The Theory of Planned Behaviour (TPB) has received considerable attention in the literature. The present study is a quantitative integration and review of that research. From a database of 185 independent studies published up to the end of 1997, the TPB accounted for 27% and 39% of the variance in behaviour and intention, respectively. The perceived behavioural control (PBC) construct accounted for significant amounts of variance in intention and behaviour, independent of theory of reasoned action variables. When behaviour measures were self-reports, the TPB accounted for 11% more of the variance in behaviour than when behaviour measures were objective or observed (R2s = .31 and .21, respectively). Attitude, subjective norm and PBC account for significantly more of the variance in individuals' desires than intentions or self-predictions, but intentions and self-predictions were better predictors of behaviour. The subjective norm construct is generally found to be a weak predictor of intentions. This is partly attributable to a combination of poor measurement and the need for expansion of the normative component. The discussion focuses on ways in which current TPB research can be taken forward in the light of the present review.
8,889 citations
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TL;DR: In this chapter a theory of motivation and emotion developed from an attributional perspective is presented, suggesting that causal attributions have been prevalent throughout history and in disparate cultures and some attributions dominate causal thinking.
Abstract: In this chapter a theory of motivation and emotion developed from an attributional perspective is presented Before undertaking this central task, it might be beneficial to review the progression of the book In Chapter 1 it was suggested that causal attributions have been prevalent throughout history and in disparate cultures Studies reviewed in Chapter 2 revealed a large number of causal ascriptions within motivational domains, and different ascriptions in disparate domains Yet some attributions, particularly ability and effort in the achievement area, dominate causal thinking To compare and contrast causes such as ability and effort, their common denominators or shared properties were identified Three causal dimensions, examined in Chapter 3, are locus, stability, and controllability, with intentionality and globality as other possible causal properties As documented in Chapter 4, the perceived stability of a cause influences the subjective probability of success following a previous success or failure; causes perceived as enduring increase the certainty that the prior outcome will be repeated in the future And all the causal dimensions, as well as the outcome of an activity and specific causes, influence the emotions experienced after attainment or nonattainment of a goal The affects linked to causal dimensions include pride (with locus), hopelessness and resignation (with stability), and anger, gratitude, guilt, pity, and shame (with controllability)
6,982 citations