In their paper on Scientific Misconduct in Psychology, Stricker and Günther write:
"Interestingly, the trend that was identified for article retractions in psychology was not found for gross statistical inconsistencies in published psychological articles which are regarded as a potential indicator of scientific misconduct or QRPs (Nuijten et al., 2016). This finding supports Fanelli’s (2013) notion that the increase in article retractions is mostly attributable to improved detection and retraction systems (also see Gross, 2016)."
Does this mean that gross statistical inconsistencies – big but earnest mistakes – were left undetected and unretracted, while frauds were increasingly admitted and retracted voluntarily? If so (but maybe I misunderstand this part), it raises the questions:
(1) How much have those detection and retraction systems actually improved if the retractions didn't increase for gross statistical inconsistencies? Or maybe they did, but proportionately much less? (Didn't look at the cited paper by Nuijten...)
(2) If gross statistical inconsistencies are that much more likely to remain, implying the detection and retraction systems are still not top-notch (even if they'd improved), then even if the number of self-admitting retractions have increased, it's hard to know how many insincere submissions remain undetected and unwilling to retract, right?