The reproducibility crisis in scientific research refers to the ongoing struggle independent researchers face when it comes to reproducing the findings of previously published studies. Given that the reproducibility of results is fundamental to the validation and advancement of science, the crisis is a growing concern for the scientific community. Methodologies are strictly followed by independent researchers, but widely different results are not uncommon. The reproducibility crisis is mainly caused by issues around study designs, lack of reporting transparency, publication bias, and a ‘publish or perish’ culture. It may be, however, that preprints can provide an answer to the crisis.
History of the reproducibility crisis
The phrase “reproducibility crisis” emerged in the early 2010s. It referred to the growing awareness around the difficulties independent researchers encountered when trying to obtain consistent results when following the input data and methodologies of another study.
During this period, studies about the reproducibility of other studies increasingly appeared online. From studies on the reproducibility of cancer research in clinical settings to the difficulties researchers faced in obtaining previously reported social priming effects, it seemed that science was slowly becoming aware of its own potential shortcomings.
Fast forward to 2026, and a seven-year study by Nature has come to the staggering conclusion that researchers could replicate the results of only half of the studies tested. The findings are cause for alarm, showing that the reproducibility crisis is deeply embedded in scientific culture.
What is causing the crisis?
The reproducibility crisis does not have a single cause; rather, it is driven by a combination of intersecting factors. Here are some of the key systemic and cultural issues.
- Study design: Experimental conditions can be incredibly complex. On top of that, studies may be poorly designed or executed. For independent researchers trying to reproduce findings, it can feel like something is missing.
- Reporting transparency: Researchers frequently fail to share raw data, code, and methodologies alongside findings, making independent verification close to impossible.
- Publication bias: Scientific journals lean in favour of publishing studies demonstrating positive results. This creates a distorted idea of scientific validity; even from unsuccessful studies we can gain valuable information and insight.
- ‘Publish or perish’ culture: Incentive structures within scientific publishing reward researchers for publishing with more prestigious journals. Funding and career opportunities can arise from doing so, but this encourages rushed research aimed at generating attention or influencing topical discussions rather than vigorously validating methods.
Now that we are familiar with some of the causes behind the reproducibility crisis, what are the solutions?
How preprints provide an answer
Preprints are early versions of scholarly articles supported by a robust open science framework. Preprints.org posts these preliminary article versions online using a Creative Commons (CC BY) 4.0 license. This ensures that authors retain copyright and receive credit for their work while allowing anyone to read and use their work.
Indeed, the preprint posting process opens up the reviewing process to the entire scientific community. Instead of limiting it to one or two external experts, anyone can leave feedback. The result is, via rapid dissemination of research, data and methods can be immediately scrutinised by scientists around the world. Therefore, potential errors or oversights in an early manuscript can be corrected before journal publication. This could, in the long run, address issues around study design flaws.
On the other side of the argument, studies perceived as ‘unsuccessful’ due to negative or null results can still be published as a preprint. This helps to provide a more comprehensive view of scientific analysis whilst avoiding publication bias. In addition, preprint posting is less susceptible to incentive structures than journal publishing, given its more democratic nature.
Finally, authors posting a preprint with Preprints.org must make all data associated with their submission available where there are no legal or confidentiality constraints in doing so. This includes following FAIR principles and uploading data to a recognized data repository before posting a preprint.
It is important to remember that preprints are part of a wider open science toolkit, not a complete solution. The reproducibility crisis is a systemic and cultural issue within scientific publishing. But by supporting preprints, we help offer an alternative way of disseminating research.
