Jelte Wicherts
@JelteWicherts
Followers
4K
Following
354
Media
299
Statuses
1K
Professor in methodology. Tweets about meta-research, intelligence, open science, methods, and bias & error in (psychological) science. Also proud father of 4
The Netherlands
Joined November 2010
Nearly three-quarters of tested psychological scales failed the test of measurement invariance needed for meaningful group comparisons.
4
129
399
Classic educational psychology on scaffolding fails to replicate.
1
6
16
What it takes to tutor—A preregistered direct replication of the scaffolding experimental study by D. Wood et al. (1978).
psycnet.apa.org
Scaffolding, which can be summarized as the right instructional support at the right moment in time, is often mentioned as an important feature of effective teaching. The present study is a preregi...
0
0
4
Meta-analyzing the multiverse: A peek under the hood of selective reporting.
0
0
2
RT @DegenRolf: The stereotype threat effect, once one of social psychology's pet theories, gets hammered in another large-scale replication….
0
74
0
Implementing Statcheck During Peer Review Is Related to a Steep Decline in Statistical-Reporting Inconsistencies - Michèle B. Nuijten, Jelte M. Wicherts, 2024
journals.sagepub.com
We investigated whether statistical-reporting inconsistencies could be avoided if journals implement the tool statcheck in the peer-review process. In a preregi...
2
10
21
RT @MicheleNuijten: 🚨 New #metascience paper with @jeltewicherts, now accepted in AMPPS! 🚨. Using #statcheck in peer review is linked to de….
0
23
0
RT @JelteWicherts: Vacancy: We are looking for two fully paid PhD students in methodology and statistics as part of my NWO-funded VICI proj….
0
13
0
Vacancy: We are looking for two fully paid PhD students in methodology and statistics as part of my NWO-funded VICI project Examining Variation in Causal Effects in Psychology! .
0
13
24
Preregistration in practice: A comparison of preregistered and non-preregistered studies in psychology @DenOlmo .
2
49
155
In more than half of 459 preregistered studies, hypotheses were added, omitted, or changed in the published papers. @DenOlmo .
0
71
179
Selective outcome reporting can be corrected in meta-analyses (subject to assumptions).
0
13
39
RT @RetractionWatch: “Implementing statcheck during peer review is related to a steep decline in statistical reporting errors.”. https://t.c….
0
3
0
RT @PhysicsMagazine: “It is disheartening to see that even among…excellent early career researchers, misconduct and academic cheating appea….
physics.aps.org
In a survey of 244 engineering graduate students, one fifth admit to cheating or committing some form of research malpractice during their studies.
0
4
0
RT @BrianNosek: 19% of 755 phase 3 cancer trials had changes to the primary end points in the paper compared to the registration. 70% of t….
jamanetwork.com
This cross-sectional study assesses the frequency of reporting of primary end point changes among active oncology phase 3 randomized clinical trials.
0
66
0
RT @DenOlmo: Preregistration in practice: A comparison of preregistered and non-preregistered studies in psychology. The link to the prepri….
0
18
0
Vacancy: two fully paid 4-year PhD positions in meta-research as part of the NWO-funded VICI project Examining Variation in Causal Effects in Psychology.
1
11
11
RT @DenOlmo: Did papers about COVID-19 (presumably written under high pressure) contain more statistical inconsistencies than non-COVID-19….
0
5
0