SCImago ranks Cognitive Psychology as #26 of all psychology journals with an SJR-Impact-Factor of 2.9 in 2014. At present, the replicability-report is based on articles published from inception in 1970 to 2015. During this time, Cognitive Psychology published 919 articles. The replicability-report is based on 423 articles that reported one or more t or F-test in the text of the results section (results reported in Figures or Tables are not included). The test-statistic was converted into z-scores to estimate post-hoc-power. The analysis is based on 3,076 z-scores in the range from 2, just above the 1.96 criterion value for p < .05 (two-tailed), to 4.
Based on the distribution of z-scores in the range between 2 and 4, the average power for significant results in this range is estimated to be 70%. This estimate suggests that 70% of the published significant results in this range are predicted to produce a significant results in an exact replication study with the same sample size and power (results with z > 4 are expected to replicate with nearly 100%).
The same method was used to estimate power for individual years.
The results show an increase over time. In the past 10 years, replicability scores have been above the historic average. The replicability score in 2015 was 74%, which is one of the highest scores among psychology journals. The 2015 score can still change as more data are becoming available.