A Multi-Lab Test of the Facial Feedback Hypothesis by The Many Smiles Collaboration

Na, Coles; Ds, March; Marmolejo‐Ramos, Fernando; Arinze, Nwadiogo Chisom; Ndukaihe, Izuchukwu Lawrence Gabriel; Aa, Özdoğru; Aczél, Balázs; Hajdú, Nándor; Nagy, Tamás Dániel; Basnight-Brown, Dana; D, Zambrano; Foroni, Francesco; Willis, Megan L.; Pfuhl, Gerit; Kamiński, G.; IJzerman, Hans; Vezirian, Kévin; Banaruee, Hassan; I, Suarez; Jt, Larsen; Barzykowski, Krystian; Parzuchowski, Michał; Marczak, A; Butcher, Natalie; Dagaev, Nikolay; Gorbunova, Elena; Reggev, Niv; Gygax, Pascal; Hunter, Jennifer; Me, Pinks; Yamada, Yuki; Ikeda, Ayumi; Levitan, Carmel; Strack, Fritz; Gaertner, Lowell; Pc, Ellsworth; Liuzza, Marco Tullio

doi:10.31234/osf.io/cvpuw

Cited by 21 publications

(17 citation statements)

References 30 publications

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“…Interestingly, this problem seems difficult to overcome even when researchers make a concerted effort to reconcile their disagreements (Coles et al, 2019), suggesting that theoretical models are not specified clearly enough for the adversaries to see where their assumptions diverge.…”

Section: Are Psychologists Ready To Test Hypotheses?mentioning

confidence: 99%

Why hypothesis testers should spend less time testing hypotheses

Scheel¹,

Tiokhin²,

Isager³

et al. 2020

Preprint

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For almost half a century, Paul Meehl educated psychologists about how the mindless use of null-hypothesis significance tests made research on theories in the social sciences basically uninterpretable (Meehl, 1990). In response to the replication crisis, reforms in psychology have focused on formalising procedures for testing hypotheses. These reforms were necessary and impactful. However, as an unexpected consequence, psychologists have begun to realise that they may not be ready to test hypotheses. Forcing researchers to prematurely test hypotheses before they have established a sound ‘derivation chain’ between test and theory is counterproductive. Instead, various non-confirmatory research activities should be used to obtain the inputs necessary to make hypothesis tests informative. Before testing hypotheses, researchers should spend more time forming concepts, developing valid measures, establishing the causal relationships between concepts and their functional form, and identifying boundary conditions and auxiliary assumptions. Providing these inputs should be recognised and incentivised as a crucial goal in and of itself. In this article, we discuss how shifting the focus to non-confirmatory research can tie together many loose ends of psychology’s reform movement and help us lay the foundation to develop strong, testable theories, as Paul Meehl urged us to.

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Section: Are Psychologists Ready To Test Hypotheses?mentioning

confidence: 99%

Why hypothesis testers should spend less time testing hypotheses

Scheel¹,

Tiokhin²,

Isager³

et al. 2020

Preprint

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show abstract

“…Importantly, meta-analysis reveals that facial feedback exerts a small impact on emotional experience (Coles, Larsen, & Lench, 2019). For example, previous research has indicated that posing smiles can both magnify ongoing feels of happiness and initiate feelings of happiness in otherwise nonemotional scenarios (Coles, March, et al, 2019).…”

Section: Theoretical Foundationmentioning

confidence: 99%

Does Blocking Facial Feedback Via Botulinum Toxin Injections Decrease Depression? A Critical Review and Meta-Analysis

et al. 2019

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Researchers have proposed that blocking facial feedback via glabellar-region botulinum toxin injections (GBTX) can reduce depression. Random-effects meta-analyses of studies that administered GBTX to individuals with depression indicate that, 6 weeks postintervention, GBTX groups were significantly less depressed compared to placebo groups ( d = 0.83) and pretreatment levels ( d = 1.57). However, we noted the following concerns: (a) effect sizes were extraordinarily large, (b) authors failed to provide information to compute 51% of relevant effect sizes, (c) 96% of effect sizes came from studies conducted by investigators with conflicts of interest, (d) there is some evidence of publication bias, and (e) studies used ineffective blinding procedures. These considerations suggest that confidence in GBTX as a treatment for depression is premature.

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“…Another large-scale collaboration in psychology is the Many Smiles Collaboration, which focuses on human facial expressions with the goal of testing the facial feedback hypothesis (Coles et al, 2019). The ManyBabies consortium (Frank et al, 2017), another example of a large-scale collaboration in psychology, conducts replications of influential experiments in developmental psychology focusing on human infants.…”

Section: Large-scale Collaboration In Psychologymentioning

confidence: 99%

Collaboration and Open Science Initiatives in Primate Research

Primates¹,

Bohn²,

Canteloup³

et al. 2021

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Traditionally, primate cognition research has been conducted by independent teams on small populations of a few species. Such limited variation and small sample sizes pose problems that prevent us from reconstructing the evolutionary history of primate cognition. In this chapter, we discuss how large-scale collaboration, a research model successfully implemented in other fields, makes it possible to obtain the large and diverse datasets needed to conduct robust comparative analysis of primate cognitive abilities. We discuss the advantages and challenges of large-scale collaborations and argue for the need for more open science practices in the field. We describe these collaborative projects in psychology and primatology and introduce ManyPrimates as the first, successful collaboration that has established an infrastructure for large-scale, inclusive research in primate cognition. Considering examples of large-scale collaborations both in primatology and psychology, we conclude that this type of research model is feasible and has the potential to address otherwise unattainable questions in primate cognition.

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A Multi-Lab Test of the Facial Feedback Hypothesis by The Many Smiles Collaboration

Cited by 21 publications

References 30 publications

Why hypothesis testers should spend less time testing hypotheses

Why hypothesis testers should spend less time testing hypotheses

Does Blocking Facial Feedback Via Botulinum Toxin Injections Decrease Depression? A Critical Review and Meta-Analysis

Collaboration and Open Science Initiatives in Primate Research

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