Glucose promotes self-control processes (#145)

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How to Cite this Report

APA Style

Erica Lane, Kelsea Beadman, Arielle Bélisle, Regan Campbell, Elise Cournoyer Lemaire, Duncan Stewart, & Lionel Standing . Glucose promotes self-control processes. (2013, January 17). Retrieved 19:04, February 25, 2017 from http://www.PsychFileDrawer.org/replication.php?attempt=MTQ1

MLA Style

"Glucose promotes self-control processes" Erica Lane, Kelsea Beadman, Arielle Bélisle, Regan Campbell, Elise Cournoyer Lemaire, Duncan Stewart, & Lionel Standing . 17 Jan 2013 13:04 25 Feb 2017, 19:04 <http://www.PsychFileDrawer.org/replication.php?attempt=MTQ1>

MHRA Style

'Glucose promotes self-control processes', Erica Lane, Kelsea Beadman, Arielle Bélisle, Regan Campbell, Elise Cournoyer Lemaire, Duncan Stewart, & Lionel Standing , , 17 January 2013 13:04 <http://www.PsychFileDrawer.org/replication.php?attempt=MTQ1> [accessed 25 February 2017]

Chicago Style

"Glucose promotes self-control processes", Erica Lane, Kelsea Beadman, Arielle Bélisle, Regan Campbell, Elise Cournoyer Lemaire, Duncan Stewart, & Lionel Standing , , http://www.PsychFileDrawer.org/replication.php?attempt=MTQ1 (accessed February 25, 2017)

CBE/CSE Style

Glucose promotes self-control processes [Internet]. Erica Lane, Kelsea Beadman, Arielle Bélisle, Regan Campbell, Elise Cournoyer Lemaire, Duncan Stewart, & Lionel Standing ; 2013 Jan 17, 13:04 [cited 2017 Feb 25]. Available from: http://www.PsychFileDrawer.org/replication.php?attempt=MTQ1

Reference to Original Report of Finding
Title Glucose promotes self-control processes
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
Brief Statement of Original Result Gailliot et al (2007) found that thinking of mortality (cf. dental pain) depletes self-control, leading to poorer word-puzzle performance, but this deficit was eliminated by consuming a glucose drink instead of a placebo.
Type of Replication Attempted Highly Direct Replication
Result Type Successful Replication
Difference? Same Direction, .03
Number of Subjects 58
Number of Subjects in Original Study 73
Year in which Replication Attempt was Made 2012
Name of Investigators (Real Names Required) Erica Lane, Kelsea Beadman, Arielle Bélisle, Regan Campbell, Elise Cournoyer Lemaire, Duncan Stewart, & Lionel Standing
Detailed Description of Method/Results METHOD
Student subjects were randomly assigned to consume either a placebo (lemonade made with water and lemons, plus Splenda), or lemonade plus 140 calories of glucose instead of Splenda. Both drinks were 14 oz.

They then completed two measures of liking for the drink, followed by filler questionnaires and a crossword for 12 minutes to allow absorption.

Next they wrote about one of two topics for 5 min. For mortality salience they wrote about what happens 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) allowed 10 min to solve them. (e.g. ___ ATULA). They were scored for the number of word fragments left uncompleted, out of 20.

Finally they completed the Marlowe-Crowne Social Desirability Scale, and estimated how many calories there were in the drink they had consumed.

RESULTS
Mean uncompleted words (SD) (n) were:

Placebo Group
- Dental salience 12.21 (2.19) (14)
- Mortality salience 14.72 (3.43) (18)

Glucose Group
- Dental salience 13.08 (2.87) (12)
- Mortality salience 13.07 (2.70) (14)

A 2x2 independent groups ANOVA showed no significant effect of salience, F(1, 54) = 2.67), p = .11; nor drink, F(1, 54) = .26; nor their interaction, F(1, 54) = 2.72, p = .10.

However an independent groups t-test indicated that in the placebo group the number of uncompleted words increased from the dental to the mortality salience condition, t(29)= 2.28, p =.03. This indicates decreased self-control due to mortality salience, as reported in the target article.

Our results for the glucose group agree with the target article in showing no difference between dental and mortality salience conditions.

No effects were seen from the rated taste of drink, social desirability, rated number of calories, or gender.


Any Known Methodological Differences
(between original and present study)?
The time allowed for the word puzzle task was not specified in the original article, so we imposed a ten minute limit; this proved adequate. For the lemonade we allowed 1 sliced lemon per 56oz water, plus a packet of Splenda in the placebo condition.
Email of Investigator
Name of individuals who
actually carried out the project
The data were analyzed by L.Standing; the remaining authors collected it.
Location of ProjectNicolls 316, Bishop's University
Characteristics of Subjects
(subject pool, paid, etc.)
University students from subject pool
Where did these subjects reside?Canada
Was this a Class Project?Yes
Further Details of Results as pdf
Additional Comments
Email of Original Investigator
Quantitive Information The effect size reported by Gailliot for the decreased self-control due to mortality salience was d = .33. We also found decreased self-control from mortality, under placebo conditions only, an
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

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