Of Fallacies and Errors, New and Repeated: A Rejoinder to Butcher et al. (2018).

Butcher, Hass, Greene, Nelson, Nichols, and Williams ( 2018 ) responded to my (Ben-Porath, 2018 ) critique of Butcher, Hass, Greene, and Nelson's (2015) analysis of Ted Kaczynski's MMPI-2-RF, purporting to find logical fallacies in my arguments and shortcomings in my interpretation of MMPI-2-RF scales. Butcher et al. ( 2018 ) repeated several previously refuted arguments and opinions, while failing to acknowledge, let alone consider, prior responses to their claims. In this rejoinder I refute (again) Butcher et al.'s assertion that empirical data raise questions about the "clinical sensitivity" of MMPI-2-RF scales, identify an extensive literature relevant to forensic use of the MMPI-2-RF that Butcher and colleagues have systematically ignored, and identify a series of logical and factual fallacies along with new and repeated errors of omission and commission in Butcher et al.'s response.