The perception of reproducibility in a small cohort of scientists in Europe

Reproducibility is an essential feature of all scientific outcomes. Scientific evidence can only reach its true status as reliable if replicated, but the results of well-conducted replication studies face an uphill battle to be performed, and little attention and dedication have been put into publishing the results of replication attempts. Therefore, we asked a small cohort of researchers about their attempts to replicate results from other groups, as well as from their own laboratories, and their general perception of the issues concerning reproducibility in their field. We also asked how they perceive the venues, i.e. journals, to communicate and discuss the results of these attempts. To this aim we pre-registered and shared a questionnaire among scientists at diverse levels. The results indicate that, in general, replication attempts of their own protocols are quite successful (with over 80% reporting not or rarely having problems with their own protocols). Although the majority of respondents tried to replicate a study or experiment from other labs (75.4%), the median successful rate was scored at 3 (in a 1-5 scale), while the median for the general estimation of replication success in their field was found to be 5 (in a 1-10 scale). The majority of respondents (70.2%) also perceive journals as unwelcoming of replication studies.