What BD said once upon a time in CSA,Walton does not mean that we take that as final..may be that was just a general remark..BD downplayed its role but Psychological tests have a major role in selection.It has a major role in army selection..It is used internationally in recruitment process..You can deceive the panel on interview day by posing artificial but you cant on those two days..They see you inside out..judge you and forward those analysis to BD..Its up to him to either reject it or take it seriously..BD is a chairman he can do any thing..but it do helps him to come to a conclusion...