It has been estimated that between 65% and 90% of researchers typically fail to reproduce fellow scientists’ research results. The Reproducibility Project: Cancer Biology has raised awareness of the prevalence of this problem in biomedical science. The issues are presumably more extreme still in the “softer” social science-related fields of medical / dementia research.
Feilden, T. (2017). Most scientists ‘can’t replicate studies by their peers’. London: BBC Science & Environment News / BBC News Today Programme, February 22nd 2017.
This relates to:
Baker, M. (2016). 1,500 scientists lift the lid on reproducibility. Nature. May 26th 2016; 533(7604): 452-4.
[No authors listed]. The challenges of replication. Elife. January 19th 2017; 6. e23693.
Nosek, BA. [and] Errington, TM. (2017). Making sense of replications. Elife. January 19th 2017; 6. e23383.
Back to Basics?
“The issue of replication goes to the heart of the scientific process”. Professor Malcolm Macleod.
Mogil, JS. [and] Macleod, MR. (2017). No publication without confirmation. Nature. February 22nd 2017; 542(7642): 409-411.