Dissertation•
Effectiveness and implementation of health games targeting implicit attitudes towards food and food choice
01 Jan 2019-
TL;DR: Tentative support is found that health games can be used to influence IAs towards food and positively affect food choice behaviour, however, this influence was only observed for those with healthy baseline IAs.
Abstract: Objective: Improving diets by stimulating fruit and vegetable consumption might be beneficial, in particular when they substitute energy-dense products. The aim of present study was to investigate whether a health game can be used to positively affect healthy implicit attitudes (IAs) towards food and subsequent food choice behaviour of young adults. Design: A 2 (Time: baseline vs. post-test) x 2 (Condition: health game vs. control game) x 2 (Baseline IAs: healthy IAs vs. less healthy IAs) mixed-subjects design was used with 125 participants (age: M = 20.17, SD = 1.88). Main Outcome Measures: IAs towards food were assessed at baseline and post-test using an Implicit Association Test (IAT). Additionally, food choice behaviour was assessed after game play. Results: At baseline, the majority of participants had healthy IAs (i.e., favouring fruit over chocolate snacks). At post-test, significantly less healthy IAs were observed in the control condition, while this reduction was not significant in the health game condition. Regarding food choice behaviour, participants with healthy baseline IAs were more likely to select fruit in the health game condition than participants with healthy baseline IAs in the control game condition. However, participants with less healthy baseline IAs were less likely to select fruit in the health game condition than in the control condition. We found tentative support that health games can be used to influence IAs towards food and positively affect food choice behaviour. However, this influence was only observed for those with healthy baseline IAs. Conclusion: The current version of the health game would primarily benefit those already healthy and could negatively affect those that need the intervention most, so modifications are
Citations
More filters
01 Jan 2005
TL;DR: This paper used the theory of planned behavior (TPB) to examine the impact of moral concerns on intention to buy organic apples and organic pizza and found that the positive moral component added significantly to the prediction of intention, while negative ones did not.
Abstract: This study used the theory of planned behavior (TPB) to examine the impact of moral concerns on intention to buy organic apples and organic pizza. Initially, beliefs were elicited from a group of 30 people using a combination of the traditional TPB elicitation technique supplemented by direct questioning about emotions associated with the behavior. The questionnaire-which included measures of behavioral beliefs, attitudes, subjective norm, perceived behavioral control, and measures of moral norms (worded both positively and negatively)-was completed by 281 people. Multiple regressions showed that for both foods, the positive moral component added significantly to the prediction of intention, while negative ones did not. Also, affective attitude was a strong predictor of intention for both foods.
21 citations
01 Jan 2017
TL;DR: In this paper, an experiment was conducted to test the effectiveness of two interventions targeting impulsive processes of eating behavior to facilitate weight loss: Implementation intentions to remind people about dieting versus a go/no-go task to change impulses toward palatable foods.
Abstract: Because eating behavior can take on an impulsive nature many people experience difficulty with dieting to lose weight. Therefore, an experiment was conducted to test the effectiveness of two interventions targeting impulsive processes of eating behavior to facilitate weight loss: Implementation intentions to remind people about dieting versus a go/no-go task to change impulses toward palatable foods. Dieters performed an online training program (four times in 4 weeks) in which they were randomly assigned to a 2 (implementation intention condition: dieting versus control) x 2 (go/no-go task condition: food versus control) design. They formed either dieting implementation intentions (e.g., If I open the fridge I will think of dieting!) or control implementation intentions. Furthermore, they received either a go/no-go task in which behavioral stop signals were presented upon presentation of palatable foods (food go/no-go task), or upon control stimuli. Participants' weight was measured in the laboratory before and after the intervention. Strength of participants' dieting goal and their Body Mass Index (BMI; as a proxy for impulsiveness toward food) were examined as moderators. Results showed that both dieting implementation intentions and the food go/no-go task facilitated weight loss. Moreover, dieting implementation intentions facilitated weight loss particularly among people with a strong current dieting goal, whereas the food go/no-go task facilitated weight loss independent of this factor. Instead, the food go/no-go task, but not formation of dieting implementation intentions, was primarily effective among dieters with a relatively high BMI. These results provide the first preliminary evidence that interventions aimed at targeting impulsive eating-related processes via the internet can facilitate weight loss.
5 citations
References
More filters
TL;DR: G*Power 3 provides improved effect size calculators and graphic options, supports both distribution-based and design-based input modes, and offers all types of power analyses in which users might be interested.
Abstract: G*Power (Erdfelder, Faul, & Buchner, 1996) was designed as a general stand-alone power analysis program for statistical tests commonly used in social and behavioral research. G*Power 3 is a major extension of, and improvement over, the previous versions. It runs on widely used computer platforms (i.e., Windows XP, Windows Vista, and Mac OS X 10.4) and covers many different statistical tests of thet, F, and χ2 test families. In addition, it includes power analyses forz tests and some exact tests. G*Power 3 provides improved effect size calculators and graphic options, supports both distribution-based and design-based input modes, and offers all types of power analyses in which users might be interested. Like its predecessors, G*Power 3 is free.
40,195 citations
Book•
01 Jan 1957TL;DR: Cognitive dissonance theory links actions and attitudes as discussed by the authors, which holds that dissonance is experienced whenever one cognition that a person holds follows from the opposite of at least one other cognition that the person holds.
Abstract: Cognitive dissonance theory links actions and attitudes It holds that dissonance is experienced whenever one cognition that a person holds follows from the opposite of at least one other cognition that the person holds The magnitude of dissonance is directly proportional to the number of discrepant cognitions and inversely proportional to the number of consonant cognitions that a person has The relative weight of any discrepant or consonant element is a function of its Importance
22,553 citations
TL;DR: The proposed cut off points, which are less arbitrary and more internationally based than current alternatives, should help to provide internationally comparable prevalence rates of overweight and obesity in children.
Abstract: Objective To develop an internationally acceptable definition of child overweight and obesity, specifying the measurement, the reference population, and the age and sex specific cut off points. Design International survey of six large nationally representative cross sectional growth studies. Setting Brazil, Great Britain, Hong Kong, the Netherlands, Singapore, and the United States. Subjects 97 876 males and 94 851 females from birth to 25 years of age. Main outcome measure Body mass index (weight/height 2 ). Results For each of the surveys, centile curves were drawn that at age 18 years passed through the widely used cut off points of 25 and 30 kg/m 2 for adult overweight and obesity. The resulting curves were averaged to provide age and sex specific cut off points from 2›18 years. Conclusions The proposed cut off points, which are less arbitrary and more internationally based than current alternatives, should help to provide internationally comparable prevalence rates of overweight and obesity in children.
14,792 citations
"Effectiveness and implementation of..." refers background or methods in this paper
...2 BMI was calculated using cut-off scores based on sex and age that have been established by Cole et al (2002) (Cole et al., 2000) 3 When weight and/or height was not known by the child, this was measured by the experimenter, or requested from their health care provider, parent or caregiver....
[...]
...Om BMI bij kinderen te classificeren zijn de afkapwaardes van Cole et al. (2000) gebruikt....
[...]
TL;DR: An implicit association test (IAT) measures differential association of 2 target concepts with an attribute when instructions oblige highly associated categories to share a response key, and performance is faster than when less associated categories share a key.
Abstract: An implicit association test (IAT) measures differential association of 2 target concepts with an attribute. The 2 concepts appear in a 2-choice task (e.g., flower vs. insect names), and the attribute in a 2nd task (e.g., pleasant vs. unpleasant words for an evaluation attribute). When instructions oblige highly associated categories (e.g., flower + pleasant) to share a response key, performance is faster than when less associated categories (e.g., insect + pleasant) share a key. This performance difference implicitly measures differential association of the 2 concepts with the attribute. In 3 experiments, the IAT was sensitive to (a) near-universal evaluative differences (e.g., flower vs. insect), (b) expected individual differences in evaluative associations (Japanese + pleasant vs. Korean + pleasant for Japanese vs. Korean subjects), and (c) consciously disavowed evaluative differences (Black + pleasant vs. White + pleasant for self-described unprejudiced White subjects).
9,731 citations
"Effectiveness and implementation of..." refers background or methods in this paper
...IMPLICIT ATTITUDES To investigate whether IAs towards food would be influenced by the health game, we administered an Implicit Association Test (IAT) (Greenwald et al., 1998) at baseline and directly after playing the health game or the control game....
[...]
...PRIMARY OUTCOME MEASURE: IMPLICIT ATTITUDES To investigate whether IAs towards food would be influenced by the health game, an implicit association test (IAT; Greenwald et al., 1998) was administered at baseline and directly after playing the health game or the control version....
[...]
...To investigate whether IAs towards food would be influenced by the health game, an implicit association test (IAT; Greenwald et al., 1998) was administered at baseline and directly after playing the health game or the control version....
[...]
...To investigate whether IAs towards food would be influenced by the health game, we administered an Implicit Association Test (IAT) (Greenwald et al., 1998) at baseline and directly after playing the health game or the control game....
[...]
...Impliciete associaties werden gemeten met de Impliciete Attitude Test (IAT: Greenwald et al., 1998), die vaststelde of er een impliciete voorkeur was voor fruit, dan wel voor chocolade snacks....
[...]