Replicability-Report for EMOTION

EMOTION is a journal of the American Psychological Association.  It started publishing articles in 2001.

SCImago ranks EMOTION as #60 of all psychology journals with an SJR-Impact-Factor of 2.00 in 2014.

At present, the replicability-report is based on articles published from inception in 2001 to 2015. During this time, EMOTION published 1182 articles. The replicability-report is based on 1034 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 6,932 z-scores in the range from 2, just above the 1.96 criterion value for p < .05 (two-tailed), to 4.

PHP-Curve Emotion

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 61%. This estimate suggests that only 61% 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.

PHP-Trend EMOTION

The results show a decrease in power over time.  In the past 4 years, all power estimates are below the historic average. In the current year, the replicability score is 52.   There is no indication that power of published studies is increasing in response to the replicability crisis in psychology.

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