People on all sides of the recent push for direct replication—a push I find both charming and naive—are angry. Direct Reproduction of the Iowa Gambling Task and the Replication Crisis in Psychology Abstract The reproducibility of psychological experiments is crucial in proving the reliability of scientific findings and results of the experiments. Direct replication is certainly an important part of the process, but if we rely solely on reproducing the same result over and over again then we run the risk of making the same mistakes over and over . Reproducibility is central to science, but direct replication studies rarely appear in psychology journals because publishing incentives tend to favor novelty over reliability. . studies published in three psychology journals using high-powered designs and original. The Reproducibility Project: Psychology sought to replicate theeffects of 100 psychology studies. A trusted reference in the field of psychology, offering more than 25,000 clear and authoritative entries. First, there is a type called "exact replication" (also called "direct replication"). For the higher-SES sample, the 7-min ceiling prevented a direct replication of Mischel and Shoda's original work (e.g., Shoda et al., 1990), as a substantial majority of higher-SES children hit the ceiling. I build on their arguments by underscoring the necessity of direct implication for two domains of clinical psychological science: the evaluation of psychotherapy outcome and the construct validity of psychological measures. The alleged crisis and the illusion of exact replication. PSYCHOLOGY Estimating the reproducibilityof psychological science .
This is not true of all direct replication efforts: the just-released report by the Open Science Collaboration (2015) is a model of circumspection. In their survey of social science journal editors , Neuliep & Crandall [ 42 ] found almost three quarters preferred to publish novel findings rather than replications.
direct replication researchers repeat an original study as closely as they can to see whether the effect is the same in the newly collected data. First, there is a type called "exact replication" (also called "direct replication"). Of course, one failed direct replication does not mean the effect is non-existent—science depends on the accumulation of evidence. The failure to find an effect with a well-powered direct replication must be taken as evidence against the original effect.
Keywords direct replication, conceptual replication, reliability, generalizability In the aggregate, 10 effects replicated consistently.
This replication attempt, unlike most of the earlier ones (for a discussion see ), was very close to a direct replication (see Methods for the exceptions).
The dialogue around replication ignited in 2015 when Brian Nosek's lab reported that after replicating 100 studies from three psychology journals, researchers were unable to reproduce a large portion of findings. In the winter of 2016 at the largest annual gathering of social psychologists in the world, my collaborators and I were awarded one of the top prizes of the field for a paper we wrote presenting new ideas on the psychology of willpower. 4, page 3 of 13 be that researchers strive to execute and publish 1 inde-pendent direct replication (of another researcher's finding) for every 4 (first-author) original studies they publish per year. Some have even suggested that replication is .
Although attempts at direct replication in psychology have become more frequent, replication is still not widely accepted (Makel et al., 2012; Martin & Clarke, 2017).
Journal of Personality and Social Psychology , 120 (2), e1-e7. when specifying AOIs), improving (e.g. An analysis of the publication history in the top 100 psychology journals between 1900 and 2012 indicated that approximately 1.6% of all psychology publications were replication attempts. The debate built following failures to replicate studies on priming by John Bargh, and on 'anomalous retroactive influences' by Daryl Bem. Most participants agreed that replications are important in psychology, should be conducted and published more often, and should be adequately funded. Explore the requirements of external validity and learn about internal validity, replication, control, and . More references
the value of direct replication by other laboratories. 120, No. Preregistered Direct Replication of "Sick Body, Vigilant Mind: The Biological Immune System Activates the Behavioral Immune System" Joshua M. Tybur1,2, Benedict C. Jones3,4, Lisa M. DeBruine3, Joshua M. Ackerman5, and Vanessa Fasolt3 1Department of Experimental and Applied Psychology, Vrije Universiteit Amsterdam; 2Institute of Brain
When a finding in psychology has not replicated in a direct replication study, one reason might be that the original study used a small sample. A direct replication of Cialdini et al.'s (1975) classic door-in-the-face technique. Researchers often value other types of replication studies as supplements to direct replication studies. a School of Psychology, Université d'Ottawa Abstract The Quantitative Methods for Psychology journal begins the publication of replication studies. Moreover, replication has at times been "weaponized" in psychology such that high-profile cases of failed replication have resulted in the Two of the articles in this special section question the value of direct replication by other laboratories. 2. pp. Although debate exists about the definition of direct replication, that is what we label the present work (despite likely intersite variability, as we will examine later) because (a) we recreated all aspects of Gebauer et al.'s (2018) procedure germane to the original authors' hypotheses, and (b) we consulted with J. E. Gebauer to ensure .
Almost all participants (98% of Australians and 96% of Italians) defined replication as direct replication (i.e., using the exact same method as in the original experiment). make a compelling case for the necessity of direct replication in psychological science. The purpose of this special issue is to change these incentives. If an effect is reliable, any competent researcher should be able to obtain it when using the same procedures with adequate statistical power. a School of Psychology, Université d'Ottawa Abstract The Quantitative Methods for Psychology journal begins the publication of replication studies.
If the study gets the same result twice (or more), we say that the study's findings are replicable. Chapter 14 in the book describes three types of replications: Direct replication, conceptual replication, and replication-plus-extension.
The research included all 68 pre-registered multi-lab direct replication projects in social and cognitive psychology up to now.
The failure to find an effect with a well-powered direct replication must be taken as evidence against the original effect. What are the Types of Replication Studies? A
the attempt to recreate the conditions believed. I am personally quite agnostic as to the value of the current interest in direct replication. when predefining the critical .
Andrew Karpinski, Department of Psychology,Weiss Hall, 1701 North 13th Street, Philadelphia, PA 19122, USA.
However, the replication rate did . ever, a replication of the original interaction effect is an important and necessary precondition before investigating potential moderating con-textual factors.
However, journals were reluctant to publish replication failures.
LeBel: A New Replication Norm for Psychology Art. 2021 ; Vol. Abstract.
The Replication Crisis in Psychology. / Does social psychology persist over half a century? Although replication is a central tenet of science, direct replications are rare in psychology. In a direct replication, the new research team essentially seeks to duplicate the sampling and experimental procedures of the original research by following the same "experimental recipe" provided in the methods section of the original publication.
There has been a replication crisis for a great number of psychological studies cannot be successfully replicated or does not include all the information . A direct replication of Cialdini et al.'s (1975) classic door-in-the-face technique. Direct replication is useful for establishing that the findings of the original study are reliable (see reliability). For someone who grew up with few books in the house and with parents who .
In 2011, the Open Science Collaboration ( 2015) launched a large-scale project - the so-called "Reproducibility Project" - in which they attempted 100 direct replications of experimental and correlational studies in . In this commentary, I discuss the problematic implications of some of their assumptions and argue that direct replication by multiple laboratories is the only way to verify the reliability of an effect. This research tested variation in the replicability of 13 classic and contemporary effects across 36 independent samples totaling 6,344 participants. Although replication is an important part of the science of psychology, many of the incentives in the field do not encourage replication studies (e.g., Nosek, Spies, & Motyl, 2012). There are different types of replication. Where we did deviate from the procedure as described in the original paper, the changes aimed at approximating (e.g. Last week at APS (the Association for Psychological Science 2014 annual meeting) I heard colleagues—often personal friends—characterized as either methodological simpletons or inscrutable bullies. Unfortunately, there is no standard terminology to go with it (Plesser 2018).Claerbout, who was the first to call for replicability in computational modeling, marked the distinction using the terms "reproduction" and "replication" (see Claerbout and Karrenbach 1992).
if there were any threats to internal validity or flaws in construct validity in the original study, such threats would be repeated in the direct replication too.
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direct replication psychology