Glucose promotes self-control following depletion (#223)
How to Cite this Report
APA StyleLisa Astrologo, Felecia Benbow, Chelsea Cyr-Gautier, Charlotte Williams, and Lionel Standing. Glucose promotes self-control following depletion. (2015, May 04). Retrieved 08:30, March 25, 2017 from http://www.PsychFileDrawer.org/replication.php?attempt=MjIz
MLA Style"Glucose promotes self-control following depletion" Lisa Astrologo, Felecia Benbow, Chelsea Cyr-Gautier, Charlotte Williams, and Lionel Standing. 04 May 2015 14:45 25 Mar 2017, 08:30 <http://www.PsychFileDrawer.org/replication.php?attempt=MjIz>
MHRA Style'Glucose promotes self-control following depletion', Lisa Astrologo, Felecia Benbow, Chelsea Cyr-Gautier, Charlotte Williams, and Lionel Standing, , 04 May 2015 14:45 <http://www.PsychFileDrawer.org/replication.php?attempt=MjIz> [accessed 25 March 2017]
Chicago Style"Glucose promotes self-control following depletion", Lisa Astrologo, Felecia Benbow, Chelsea Cyr-Gautier, Charlotte Williams, and Lionel Standing, , http://www.PsychFileDrawer.org/replication.php?attempt=MjIz (accessed March 25, 2017)
CBE/CSE StyleGlucose promotes self-control following depletion [Internet]. Lisa Astrologo, Felecia Benbow, Chelsea Cyr-Gautier, Charlotte Williams, and Lionel Standing; 2015 May 04, 14:45 [cited 2017 Mar 25]. Available from: http://www.PsychFileDrawer.org/replication.php?attempt=MjIz
|Reference to Original Report of Finding||Gailliot, M. T., Baumeister, R. F., DeWall, N. C., Maner, J. K., Plant, A. E., Tice, D. M., & Brewer, L. E. (2007). Self-control relies on glucose as a limited energy source: Willpower is more than a metaphor. Journal of Personality and Social Psychology, 92(2), 325-336. doi:10.1037/0022-35220.127.116.115|
|Title||Glucose promotes self-control following depletion|
|If the original article contained multiple experiments, which one did you attempt to replicate? e.g., you might respond 'Study 1' or 'Experiment 4'.||Experiment 8|
|Link to PDF of Original Report||View Article|
|Brief Statement of Original Result||Gailliot et al (2007) found that reduced self-control, caused by thinking of of mortality (cf. dental pain), impairs word-puzzle persistence under placebo conditions. This deficit was eliminated in subjects who had consumed a glucose drink.|
|Type of Replication Attempted||Highly Direct Replication|
|Result Type||Successful Replication|
|Difference?||Same Direction, .010|
|Number of Subjects||306|
|Number of Subjects in Original Study||73|
|Year in which Replication Attempt was Made||2014|
|Name of Investigators (Real Names Required)||Lisa Astrologo, Felecia Benbow, Chelsea Cyr-Gautier, Charlotte Williams, and Lionel Standing|
|Detailed Description of Method/Results||
Subjects were randomly assigned to consume either a placebo (lemonade made with water and lemons, plus Splenda sweetener), or lemonade plus 140 calories of glucose instead of the Splenda. Both drinks were 14oz.|
They then completed two measures of liking for the drink, followed by filler questionnaires and a crossword for 12min to allow its absorption.
Next they wrote about one of two topics for 5min. For mortality salience they wrote about what would happen to their body after death, and their emotions. For dental salience they wrote about how their body reacts to dental pain, and their emotions.
They were then given a sheet with 20 word fragments (words were selected randomly from the dictionary) and allowed 10min to solve them (e.g. ___ATULA). They were scored for the number of word fragments that were left uncompleted, out of 20.
Finally they estimated how many calories there were in the drink they had consumed.
Mean numbers of uncompleted words (SD)(n) were:
- Dental salience 11.69 (4.17)(80)
- Mortality salience 12.03 (3.66)(71)
- Dental salience 11.06 (4.06) (68)
- Mortality salience 10.61 (3.99) (87)
A 2x2 independent groups ANOVA showed no significant effect of salience, F(1, 302) = .014, p = .91. Fewer uncompleted words were left with the glucose drink, F(1, 302) = 5.01, p = .026. There was no interaction between drink and salience, F(1, 302) = 0.75, p = .39.
An independent groups t-test showed that under mortality salience conditions, fewer words were left after drinking glucose than after placebo, t(156) = 2.33, p = .010. However, with dental pain salience, there was no difference due to the drinks, t(146) = .93, p = .17.
These results support the findings of the target article: glucose compared to placebo increased subjects' self-control, shown as fewer words left uncompleted.
|Any Known Methodological Differences |
(between original and present study)?
|No differences are known (except that the Marlowe-Crowne Social Desirability Scale was not given after testing). A 10 min period was used for consumption of the assigned drink (unspecified duration in the original report). The lemonade used 1 sliced lemon per 56 oz water, plus a packet of Splenda in the placebo condition or 800g glucose per 8L water in the experimental condition.|
|Email of Investigator|
|Name of individuals who |
actually carried out the project
|The data were analyzed by L.Standing, and were collected by the remaining authors.|
|Location of Project||Nicolls 316, Bishop's University|
|Characteristics of Subjects |
(subject pool, paid, etc.)
|University students from subject pool|
Unpaid volunteers, undergraduate psychology students. 68% were female.
|Where did these subjects reside?||Canada|
|Was this a Class Project?||No|
|Further Details of Results as pdf||
|Email of Original Investigator|
|Quantitive Information||The effect size for the effect of glucose observed by Gailliot was d = .33. We observed an effect size of d = .37, thus showing comparability to the original results.|
|I have complied with ethical standards for experimentation on human beings and, if necessary, have obtained appropriate permission from an Institutional Review Board or other oversight group.|
|TAG: Attention TAG: JDM TAG: Language TAG: Learning TAG: Memory TAG: Perception TAG: Performance TAG: Problem Solving TAG: Social Cognition TAG: Social Psychology TAG: Thinking|