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Innovative Methods for Psychology: Reproducible, Open, Valid, and Efficient

Total Cost €


EC-Contrib. €






 IMPROVE project word cloud

Explore the words cloud of the IMPROVE project. It provides you a very rough idea of what is the project "IMPROVE" about.

lower    obscure    registration    society    cross    inefficient    reporting    tools    building    waste    moderation    selective    failures    biasing    false    differential    literature    meta    leads    flexibility    privacy    highlighting    review    hacking    tool    disseminate    correcting    analytic    bias    tendency    erc    replicate    draw    correction    crisis    with    psychological    estimates    vexing    considerable    peer    contributed    statcheck    confirmation    inferences    positive    size    demand    professing    share    reviewers    latent    blind    psychologists    researcher    innovative    trust    explorations    of    counter    validation    publication    scientific    scientists    solutions    poor    inflate    simultaneously    exploration    powerful    science    significance    fruitless    psychology    refine    perfection    theory    outcomes    biases    data    confidence    variables    misinterpretations    outcome    render    effect    experiments    actual    said    misreporting    report    publish   

Project "IMPROVE" data sheet

The following table provides information about the project.


Organization address
address: WARANDELAAN 2
postcode: 5037 AB

contact info
title: n.a.
name: n.a.
surname: n.a.
function: n.a.
email: n.a.
telephone: n.a.
fax: n.a.

 Coordinator Country Netherlands [NL]
 Total cost 1˙999˙747 €
 EC max contribution 1˙999˙747 € (100%)
 Programme 1. H2020-EU.1.1. (EXCELLENT SCIENCE - European Research Council (ERC))
 Code Call ERC-2016-COG
 Funding Scheme ERC-COG
 Starting year 2017
 Duration (year-month-day) from 2017-06-01   to  2022-05-31


Take a look of project's partnership.

# participants  country  role  EC contrib. [€] 


 Project objective

With numerous failures to replicate, common misreporting of results, widespread failure to publish non-significant results or to share data, and considerable potential bias due the flexibility of analyses of data and researcher’s tendency to exploit that flexibility, psychological science is said to experience a crisis of confidence. These issues lead to dissemination of false positive results and inflate effect size estimates in meta-analyses. This leads to poor theory building, an inefficient scientific system, a waste of resources, lower trust in psychological science, and psychology’s outcomes being less useful for society. After having contributed to the literature highlighting these problems the goal of my ERC project is to improve psychological science by offering novel solutions to five vexing challenges: (1) I want to counter misreporting of results by using our new tool statcheck in several studies on reviewers’ tendency to demand perfection and by applying it to actual peer review. (2) I want to counter the biasing effects of common explorations of data (p-hacking) by professing and studying pre-registration and by developing promising new approaches called blind analysis and cross-validation using differential privacy that simultaneously allows for exploration and confirmation with the same data. (3) I want to counter the common problem of selective outcome reporting in psychological experiments by developing powerful latent variable methods that render it fruitless to not report all outcome variables in a study. (4) I want to counter the problem of publication bias by studying and correcting misinterpretations of non-significance. (5) I want to develop and refine meta-analytic methods that allow for the correction of biases that currently inflate estimates of effects and obscure moderation. The innovative tools I develop have the potential to improve the way psychologists (and other scientists) analyse data, disseminate findings, and draw inferences.


List of deliverables.
Data Management Plan Open Research Data Pilot 2019-03-11 14:12:32

Take a look to the deliverables list in detail:  detailed list of IMPROVE deliverables.


year authors and title journal last update
List of publications.
2020 Balazs Aczel, Barnabas Szaszi, Alexandra Sarafoglou, Zoltan Kekecs, Šimon Kucharský, Daniel Benjamin, Christopher D. Chambers, Agneta Fisher, Andrew Gelman, Morton A. Gernsbacher, John P. Ioannidis, Eric Johnson, Kai Jonas, Stavroula Kousta, Scott O. Lilienfeld, D. Stephen Lindsay, Candice C. Morey, Marcus Munafò, Benjamin R. Newell, Harold Pashler, David R. Shanks, Daniel J. Simons, Jelte M. W
A consensus-based transparency checklist
published pages: 4-6, ISSN: 2397-3374, DOI: 10.1038/s41562-019-0772-6
Nature Human Behaviour 4/1 2020-02-04
2018 Michèle B. Nuijten, Marjan Bakker, Esther Maassen, Jelte M. Wicherts
Verify original results through reanalysis before replicating
published pages: , ISSN: 0140-525X, DOI: 10.1017/s0140525x18000791
Behavioral and Brain Sciences 41 2020-02-04
2019 Paul Lodder, How Hwee Ong, Raoul P. P. P. Grasman, Jelte M. Wicherts
A comprehensive meta-analysis of money priming.
published pages: 688-712, ISSN: 0096-3445, DOI: 10.1037/xge0000570
Journal of Experimental Psychology: General 148/4 2019-11-12
2019 Robbie C. M. van Aert, Jelte M. Wicherts, Marcel A. L. M. van Assen
Publication bias examined in meta-analyses from psychology and medicine: A meta-meta-analysis
published pages: e0215052, ISSN: 1932-6203, DOI: 10.1371/journal.pone.0215052
PLOS ONE 14/4 2019-11-12
2019 Paul Lodder, Johan Denollet, Wilco H. M. Emons, Giesje Nefs, Frans Pouwer, Jane Speight, Jelte M. Wicherts
Modeling Interactions Between Latent Variables in Research on Type D Personality: A Monte Carlo Simulation and Clinical Study of Depression and Anxiety
published pages: 637-665, ISSN: 0027-3171, DOI: 10.1080/00273171.2018.1562863
Multivariate Behavioral Research 54/5 2019-11-12
2019 Esther Maassen, Jelte M. Wicherts
Distinguishing Specific from General Effects in Cognition Research
published pages: 288-292, ISSN: 2211-3681, DOI: 10.1016/j.jarmac.2019.06.007
Journal of Applied Research in Memory and Cognition 8/3 2019-11-12
2017 Jelte Wicherts
The Weak Spots in Contemporary Science (and How to Fix Them)
published pages: 90, ISSN: 2076-2615, DOI: 10.3390/ani7120090
Animals 7/12 2019-04-02

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The information about "IMPROVE" are provided by the European Opendata Portal: CORDIS opendata.

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