What does research reproducibility mean?

I'd be willing to bet that none of the clinical stroke research trials since forever are reproducible or replicable.  Because they don't have an objective starting point of exact description of the size and location of the dead/damaged areas.
Definitions from Retraction Watch
Here’s how the US National Science Foundation (NSF) defines “reproducibility,” according to the authors:

…reproducibility refers to the ability of a researcher to duplicate the results of a prior study using the same materials as were used by the original investigator. That is, a second researcher might use the same raw data to build the same analysis files and implement the same statistical analysis in an attempt to yield the same results…. Reproducibility is a minimum necessary condition for a finding to be believable and informative.

And here’s how the NSF defines “replicability,” the authors say:

…the ability of a researcher to duplicate the results of a prior study if the same procedures are followed but new data are collected.

What does research reproducibility mean?

1. Steven N. Goodman*,
2. Daniele Fanelli and
3. John P. A. Ioannidis

+ Author Affiliations

1. ↵*Corresponding author. Email: steve.goodman@stanford.edu

Science Translational Medicine  01 Jun 2016:
Vol. 8, Issue 341, pp. 341ps12
DOI: 10.1126/scitranslmed.aaf5027

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Abstract

The language and conceptual framework of “research reproducibility” are nonstandard and unsettled across the sciences. In this Perspective, we review an array of explicit and implicit definitions of reproducibility and related terminology, and discuss how to avoid potential misunderstandings when these terms are used as a surrogate for “truth.”