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Sökning: WFRF:(Holmgren E) > Högskolan i Gävle

  • Resultat 1-7 av 7
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1.
  • Andersson, Hanna, 1991-, et al. (författare)
  • The negative footprint illusion is exacerbated by the numerosity of environment-friendly additions: unveiling the underpinning mechanisms
  • 2024
  • Ingår i: Journal of Cognitive Psychology. - : Taylor & Francis. - 2044-5911 .- 2044-592X. ; 36:2, s. 295-307
  • Tidskriftsartikel (refereegranskat)abstract
    • The addition of environmentally friendly items to conventional items sometimes leads people to believe that the carbon footprint of the entire set decreases rather than increases. This negative footprint illusion is supposedly underpinned by an averaging bias: people base environmental impact estimates not on the total impact of items but on their average. Here, we found that the illusion's magnitude increased with the addition of a greater number of "green" items when the number of conventional items remained constant (Studies 1 and 2), supporting the averaging-bias account. We challenged this account by testing what happens when the number of items in the conventional and "green" categories vary while holding the ratio between the two categories constant (Study 3). At odds with the averaging-bias account, the magnitude of the illusion increased as the category size increased, revealing a category-size bias, and raising questions about the interplay between these biases in the illusion.
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2.
  • Halin, Niklas, et al. (författare)
  • Effects of Speech on Proofreading: Can Task-Engagement Manipulations Shield Against Distraction?
  • 2014
  • Ingår i: Journal of experimental psychology. Applied. - : American Psychological Association. - 1076-898X .- 1939-2192. ; 20:1, s. 69-80
  • Tidskriftsartikel (refereegranskat)abstract
    • This article reports 2 experiments that examine techniques to shield against the potentially disruptive effects of task-irrelevant background speech on proofreading. The participants searched for errors in texts that were either normal (i.e., written in Times New Roman font) or altered (i.e., presented either in Haettenschweiler font or in Times New Roman but masked by visual noise) in 2 sound conditions: a silent condition and a condition with background speech. Proofreading for semantic/contextual errors was impaired by speech, but only when the text was normal. This effect of speech was completely abolished when the text was written in an altered font (Experiment 1) or when it was masked by visual noise (Experiment 2). There was no functional difference between the 2 ways to alter the text with regard to the way the manipulations influenced the effects of background speech on proofreading. The results indicate that increased task demands, which lead to greater focal-task engagement, may shield against the distracting effects of background speech on proofreading.
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3.
  • Holmgren, Mattias, Doktorand, 1991-, et al. (författare)
  • Eliminating the Negative Footprint Illusion by Fostering a Summative Mindset using a Transfer Paradigm
  • Annan publikation (övrigt vetenskapligt/konstnärligt)abstract
    • People’s belief that an environmentally friendly item that is added to a set of conventional items has the ability to reduce the total environmental impact of these items could lead to unwanted environmental consequences. An averaging bias seems to underpin this negative footprint illusion: people make their estimates based on the average of the environmental impact produced by the items rather than their accumulative sum. We report a study using a problem-solving transfer paradigm to explore if this preoccupation to think in terms of an average can be eliminated by fostering a summative mindset. The results demonstrate that, participants can correctly estimate that environmental impact will increase when a “green” car is added to a set of petrol cars, but only when this task is preceded by a task that engenders a summation judgment. Our evidence indicates that the negative footprint illusion can be tempered by problem-solving transfer whereby a primed concept (summation) is used adaptively on subsequent judgments, thereby correcting for bias in environmental judgments.    
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4.
  • Holmgren, Mattias, Doktorand, 1991-, et al. (författare)
  • When A+B < A : Cognitive bias in experts' judgment of environmental impact
  • 2018
  • Ingår i: Frontiers in Psychology. - : Frontiers Media SA. - 1664-1078. ; 9
  • Tidskriftsartikel (refereegranskat)abstract
    • When ‘environmentally friendly’ items are added to a set of conventional items, people report that the total set will have a lower environmental impact even though the actual impact increases. One hypothesis is that this “negative footprint illusion” arises because people, who are susceptible to the illusion, lack necessary knowledge of the item’s actual environmental impact, perhaps coupled with a lack of mathematical skills. The study reported here addressed this hypothesis by recruiting participants (‘experts’) from a master’s program in energy systems, who thus have bachelor degrees in energy-related fields including academic training in mathematics. They were asked to estimate the number of trees needed to compensate for the environmental burden of two sets of buildings: One set of 150 buildings with conventional energy ratings and one set including the same 150 buildings but also 50 ‘green’ (energy-efficient) buildings. The experts reported that less trees were needed to compensate for the set with 150 conventional and 50 ‘green’ buildings compared to the set with only the 150 conventional buildings. This negative footprint illusion was as large in magnitude for the experts as it was for a group of novices without academic training in energy-related fields. We conclude that people are not immune to the negative footprint illusion even when they have the knowledge necessary to make accurate judgments.
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5.
  • Sörqvist, Patrik, et al. (författare)
  • Effects of labeling a product eco-friendly and genetically modified : A cross-cultural comparison for estimates of taste, willingness to pay and health consequences
  • 2016
  • Ingår i: Food Quality and Preference. - : Elsevier BV. - 0950-3293 .- 1873-6343. ; 50, s. 65-70
  • Tidskriftsartikel (refereegranskat)abstract
    • As the demand for eco-friendly food—produced without pesticides and environmentally harmful chemicals—increases, the need to develop genetically modified (GM) organisms that are more resistant to parasites and other environmental crop threats may increase. Because of this, products labeled both “eco-friendly” and “genetically modified” could become commonly available on the market. In this paper, we explore—in a Swedish and a UK sample—the consequences of combining eco-labeling and GM-labeling to judgments of taste, health consequences and willingness to pay for raisins. Participants tasted and evaluated four categories of raisins (eco-labeled and GM-labeled; eco-labeled; GM-labeled; and neither eco-labeled nor GM-labeled). The results suggest that there is a cost associated with adding a GM-label to an eco-labeled product: The GM-label removes the psychological benefits of the eco-label. This negative effect of the GM-label was larger among Swedish participants in comparison with UK participants, because the magnitude of the positive effect of the eco-label was larger in the Swedish sample and, hence, the negative effects of the GM-label became more pronounced. The pattern was somewhat different depending on judgmental dimension. The cost associated with adding a GM-label was larger in estimates of taste and health than in estimates of willingness to pay, at least for the Swedish sample. The roles of individual differences in attitudes, environmental concern and socially desirable responding in relation to the label effects are discussed.
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6.
  • Sörqvist, Patrik, et al. (författare)
  • The green halo : Mechanisms and limits of the eco-label effect
  • 2015
  • Ingår i: Food Quality and Preference. - : Elsevier BV. - 0950-3293 .- 1873-6343. ; 43, s. 1-9
  • Tidskriftsartikel (refereegranskat)abstract
    • Consumers believe that “eco-labeled” products taste better, which, at least in part, may be an effect of the label. The purpose of the current series of experiments was to examine some mechanisms and limits of this eco-label effect. In Experiment 1, an eco-label effect of similar magnitude was found for taste ratings of both conventional and organic bananas. Experiment 2 showed eco-label effects for a wider range of judgmental dimensions (i.e., health, calories, vitamins/minerals, mental performance, and willingness to pay) and the effect was about the same in magnitude for judgments of grapes and raisins. Experiment 3, with water as the tasted product, found no eco-label effect on judgments of taste, calories and vitamins/minerals, but an effect on willingness to pay, judgments of health benefits and judgments of mental performance benefits. Experiments 2 and 3 also included questionnaires on social desirability traits, schizotypal traits and pro-environmental consumer traits. The last was the strongest predictor of the eco-label effect amongst the three. In all, the eco-label effect is a robust phenomenon, but depends on interactions between product type and judgmental dimension. Implications for several accounts of the effect are discussed.
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7.
  • van der Ster Wallin, Gisela, et al. (författare)
  • Food selection in anorectics and bulimics : Food items, nutrient content and nutrient density
  • 1995
  • Ingår i: Journal of the American College of Nutrition (Print). - : Informa UK Limited. - 0731-5724 .- 1541-1087. ; 14:3, s. 271-277
  • Tidskriftsartikel (refereegranskat)abstract
    • The food selection and nutrient intake were investigated in women with anorexia nervosa, bulimia nervosa and controls. Methods Dietary data was obtained by 24-hour recall, and 7-day recording among eating disordered patients, and by 3-day registration among controls. Results: The intake of energy and nutrients differed from controls, as expected, while there were no differences between anorectics and bulimics in this respect, except for iron. There were only minor differences among the three groups studied with respect to nutrient density. Energy percentages of protein, fat, and carbohydrates, were similar in all groups, but a subdivision of the macronutrients into respective sources showed that bulimics had a lower relative and absolute intake of carbohydrates from bread and cereals than anorectics and controls. Conclusion: Eating disorder patients, despite their marginal food intake, still met the minimum requirement for most nutrients according to the Nordic Nutrient recommendations. Abbreviations: AN = anorexia nervosa, AN/BN = anorectic bulimics, BMI = body mass index, BN = bulimia nervosa, DSM-III-R = Diagnostic and Statistical Manual of Mental Disorders, ED = eating disorder, NNR = Nordic Nutrient Recommendation
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