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Discontinuity plots, 1959–2018 The graphs show the results of the discontinuity estimation by applying the McCrary algorithm for the 10, 5 and 1 percent significance level for unweighted, left column, and weighted data, right column, respectively. The graphs plot the distribution (grey circles) and the local linear density estimation (emerald line) with the respective 95% confidence band. Standard errors for θ ^ are reported in parentheses. The estimations use the respective default bandwidths and correspond to the first row, column (1), (5) and (9), in Table 2 for unweighted data and in S2 Table in S1 File for weighted data.
Source publication
While publication bias has been widely documented in the social sciences, it is unclear whether the problem aggravated over the last decades due to an increasing pressure to publish. We provide an in-depth analysis of publication bias over time by creating a unique data set, consisting of 12340 test statistics extracted from 571 papers published in...
