ADDITIONAL INFO:
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In the article attached please use study 1d.
Thank you.
Replication reports should all use this template to standardize reporting across projects.
— REPORT TEMPLATE —
Replication of Study X by Author1 & Author2 (Year, Psychological Science)
Introduction
Introductions can be just 1-2 paragraphs clarifying the main idea of the original study, the target finding for replication, and a clear explanation of the proposed extension. NO literature review is required — that is in the original publication. You can write both the introduction and the methods in past tense.
Methods
Power Analysis
Use https://www.socscistatistics.com/effectsize/default3.aspx to compute the original effect size.
Use https://www.stat.ubc.ca/~rollin/stats/ssize/n2.html to conduct a power analysis for samples to achieve 80%, 90%, 95% power to detect that effect size.
Planned Sample
Specify your planned sample size and/or termination rule, sampling frame, known demographics if any, preselection rules if any.
Materials
Describe your materials – you can quote directly from original article – just put the text in quotations and note that this was followed precisely. Or, quote directly and clearly highlight differences with the original article.
Provide a published link to your Qualtrics Survey here:
Procedure
You can again quote directly from original article – just put the text in quotations and note that this was followed precisely. If you made changes to the procedure, quote directly and point out differences to what was described in the original article.
Analysis Plan
Clearly explain what you will do with the data. You can quote directly, though you will likely have to expand on what is written in the article as it is less often spelled out effectively for an analysis strategy section. The key is to report an analysis strategy that is as close to the original including data cleaning rules, data exclusion rules, covariates, etc. – as possible.
Differences from Original Study
Provide a clear summary description of known differences in sample, setting, procedure, and analysis plan from original study. The goal, of course, is to minimize those differences, but differences will inevitably occur. Also, note whether such differences are anticipated to make a difference based on claims in the original article or subsequent published research on the conditions for obtaining the effect.
(Post Data Collection) Methods Addendum
Actual Sample
sample size, demographics, data exclusions based on rules spelled out in analysis plan
Differences from pre-data collection methods plan
Any differences from what was described as the original plan, or “none”.
Results
Data preparation
Data preparation following the analysis plan.
Confirmatory analysis
The analyses as specified in the analysis plan
Exploratory analyses
Any follow-up analyses desired (not required).
Discussion
Summary of Replication Attempt
Open the discussion section with a paragraph summarizing the primary result from the confirmatory analysis and the assessment of whether it replicated, partially replicated, or failed to replicate the original result.
Commentary
Add open-ended commentary (if any) reflecting (a) insights from follow-up exploratory analysis, (b) assessment of the meaning of the replication (or not) – e.g., for a failure to replicate, are the differences between original and present study ones that definitely, plausibly, or are unlikely to have been moderators of the result, and (c) discussion of any objections or challenges raised by the current and original authors about the replication attempt. None of these need to be long.