Comments on: Jack Trimarco on KNX 1070 News Radio, Los Angeles

By: Leonard Bierman

Leonard Bierman — Mon, 25 May 2009 13:48:47 +0000

Not rubbish, the results of the studies were reported by the Department of Defense polygrap Inst. in their report to Congress.I seriously doubt that they made it up

By: Thomas

Thomas — Sun, 07 Dec 2008 08:09:04 +0000

The above commenter, Leonard Bierman has on his website the following rubbish:

Researchers conducted 12 studies of the validity of field examinations, following 2,174 field examinations providing an average accuracy of 98%.

This is utter nonsense.

By: AntiPolygraph.org

AntiPolygraph.org — Thu, 12 Apr 2007 13:20:11 +0000

Polygraph testing has not been demonstrated through peer-reviewed research to reliably sort out liars from truth-tellers at better-than-chance levels of accuracy under field conditions, let alone 90%.

By: Leonard Bierman

Leonard Bierman — Thu, 12 Apr 2007 12:57:40 +0000

Jack Trimarco is awell respected polygraph examiner.Pre- employment & screening type examinations fallwell below the accuracy of specific incdent single issue exams which have been found by all respected scientific confirmed studies to converge at or about 90% accuracy.By mixing the different types of examinations(pre-empl./screening) the validity suffers.However thats really an apples/orange aproach and not sound or fair.

Lenny Bierman