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Träfflista för sökning "WFRF:(Hahn M.) "

Search: WFRF:(Hahn M.)

  • Result 1-10 of 784
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1.
  • Özdemir, Metin, 1977-, et al. (author)
  • Does promoting parents' negative attitudes to underage drinking reduce adolescents' drinking? : the mediating process and moderators of the effects of the Örebro prevention programme
  • 2016
  • In: Addiction. - : Wiley-Blackwell. - 0965-2140 .- 1360-0443. ; 111:2, s. 263-271
  • Journal article (peer-reviewed)abstract
    • Background and aims: The Örebro Prevention Programme (ÖPP) was found previously to be effective in reducing drunkenness among adolescents [Cohen's d = 0.35, number needed to treat (NNT) = 7.7]. The current study tested the mediating role of parents’ restrictive attitudes to underage drinking in explaining the effectiveness of the ÖPP, and the potential moderating role of gender, immigration status, peers’ and parents’ drinking and parent–adolescent relationship quality.Design: A quasi‐experimental matched‐control group study with assessments at baseline, and at 18‐ and 30‐month follow‐ups.Participants: Of the 895 target youths at ages 12–13 years, 811 youths and 651 parents at baseline, 653 youths and 524 parents at 18‐month and 705 youths and 506 parents at 30‐month follow‐up participated in the study.Measurements: Youths reported on their past month drunkenness, their parents’ and peers’ alcohol use and the quality of their relationship with parents. Parents reported on their attitudes to underage drinking.Findings: The mediation analyses, using latent growth curve modeling, showed that changes in parents’ restrictive attitudes to underage drinking explained the impact of the ÖPP on changes in youth drunkenness, which was reduced, and onset of monthly drunkenness, which was delayed, relative to controls. Mediation effect explained 57 and 45% of the effects on drunkenness and onset of monthly drunkenness, respectively. The programme effects on both parents’ attitudes and youth drunkenness were similar across gender, immigrant status, parents’ and peers’ alcohol use and parent–youth relationship quality.Conclusions: Increasing parents’ restrictive attitudes to youth drinking appears to be an effective and robust strategy for reducing heavy underage drinking regardless of the adolescents’ gender, cultural origin, peers’ and parents’ drinking and relationship quality with parents.
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2.
  • Aad, G., et al. (author)
  • 2011
  • swepub:Mat__t
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3.
  • Aad, G., et al. (author)
  • 2012
  • swepub:Mat__t (peer-reviewed)
  •  
4.
  • Öztayşi, Başar, et al. (author)
  • Fuzzy Analytic Hierarchy Process with Interval Type-2 Fuzzy Sets
  • 2014
  • In: Knowledge-Based Systems. - : Elsevier BV. - 0950-7051. ; 59, s. 48-57
  • Journal article (peer-reviewed)abstract
    • The membership functions of type-1 fuzzy sets have no uncertainty associated with it. While excessive arithmetic operations are needed with type-2 fuzzy sets with respect to type-1’s, type-2 fuzzy sets generalize type-1 fuzzy sets and systems so that more uncertainty for defining membership functions can be handled. A type-2 fuzzy set lets us incorporate the uncertainty of membership functions into the fuzzy set theory. Some fuzzy multicriteria methods have recently been extended by using type-2 fuzzy sets. Analytic Hierarchy Process (AHP) is a widely used multicriteria method that can take into account various and conflicting criteria at the same time. Our objective is to develop an interval type-2 fuzzy AHP method together with a new ranking method for type-2 fuzzy sets. We apply the proposed method to a supplier selection problem.
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5.
  • Aad, G., et al. (author)
  • 2012
  • swepub:Mat__t (peer-reviewed)
  •  
6.
  • Öberg, Christina, 1970-, et al. (author)
  • 2005
  • In: IMP Conference,2005. - Rotterdam : RSM Erasmus University. ; , s. 49-
  • Conference paper (peer-reviewed)
  •  
7.
  • Özlü, Neslihan (author)
  • Point forecasts from experience: An empirical examination of judgmental forecasting
  • Other publication (other academic/artistic)abstract
    • The recent surge in prices brings predictions of future inflation into focus for many businesses. It is striking, however, that the forecasts of professionals with similar background in higher education are inherently heterogeneous. This poses the question of what drives the differences in forecasts. In the literature, different lifetime experiences are cited as a source of diversity (heterogeneity) in forecasts by individuals. We analyze a data set containing the individual point forecasts of monthly inflation rates made by 26 professional forecasters, over a period of 13 years for three different categories of inflation basket items. We find that besides available information, lifetime experience of inflation is a factor affecting the estimates of inflation and explaining the heterogeneity of forecasts. In the apparel category where, relative to other categories, inflation is easier to predict, forecasters rely mainly on available information. Finally, we observe differences across cohorts of forecasters when they are clustered according to lifetime experiences based on demographic data. Our results contribute to the broader literature on experiential effects on the forecasting task. Our findings have practical implications underscoring the need for managers to familiarize themselves with the work history and lifetime experiences of their employees.
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8.
  • Aad, G., et al. (author)
  • 2013
  • Journal article (peer-reviewed)
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9.
  • Aad, G., et al. (author)
  • 2011
  • swepub:Mat__t (peer-reviewed)
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10.
  • Aad, G., et al. (author)
  • 2014
  • In: The European Physical Journal C. - : Springer Science and Business Media LLC. - 1434-6052. ; 74:10
  • Journal article (peer-reviewed)
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  • Result 1-10 of 784
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