Since The Bell Curve was published, it has become clear that almost everything about it was inexcusably  suspect data, mistakes in statistical procedures that would have flunked a sophomore (Murray--Herrnstein is deceased--clearly does not understand what a correlation coefficient means), deliberate suppression of contrary evidence, you name it.
( ( ( Since ( ( The ( Bell Curve ) ) ( was published ) ) ) ( , ( it ( has ( ( become clear ) ( that ( ( ( almost everything ) ( about it ) ) ( was ( inexcusably ( suspect ( ( ( ( data , ) ( ( mistakes ( in ( statistical procedures ) ) ) ( that ( would ( have ( flunked ( ( a sophomore ) ( -LRB- ( ( ( ( Murray ( -- ( ( Herrnstein ( is deceased ) ) -- ) ) ) clearly ) ( ( does not ) ( understand ( what ( ( a ( correlation coefficient ) ) means ) ) ) ) ) -RRB- ) ) ) ) ) ) ) ) ) , ) ( deliberate ( suppression ( of ( contrary evidence ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ( , ( you ( ( name it ) . ) ) ) )
(ROOT (S (S (SBAR (IN Since) (S (NP (DT The) (NNP Bell) (NNP Curve)) (VP (VBD was) (VP (VBN published))))) (, ,) (NP (PRP it)) (VP (VBZ has) (VP (VBN become) (ADJP (JJ clear)) (SBAR (IN that) (S (NP (NP (RB almost) (NN everything)) (PP (IN about) (NP (PRP it)))) (VP (VBD was) (ADJP (RB inexcusably) (JJ suspect) (SBAR (S (NP (NP (NNS data)) (, ,) (NP (NP (NNS mistakes)) (PP (IN in) (NP (JJ statistical) (NNS procedures))) (SBAR (WHNP (WDT that)) (S (VP (MD would) (VP (VB have) (VP (VBN flunked) (NP (NP (DT a) (NN sophomore)) (PRN (-LRB- -LRB-) (VP (VBN Murray) (PRN (: --) (S (NP (NNP Herrnstein)) (VP (VBZ is) (ADJP (VBN deceased)))) (: --)) (ADVP (RB clearly)) (S (VP (VBZ does) (RB not) (VP (VB understand) (SBAR (WHNP (WP what)) (S (NP (DT a) (NN correlation) (NN coefficient)) (VP (VBZ means)))))))) (-RRB- -RRB-))))))))) (, ,)) (VP (VB deliberate) (NP (NP (NN suppression)) (PP (IN of) (NP (NN contrary) (NN evidence)))))))))))))) (, ,) (NP (PRP you)) (VP (VBP name) (NP (PRP it))) (. .)))
The Bell Curve authors made up some of their conclusions to bolster their hypothesis.
( ( The ( Bell ( Curve authors ) ) ) ( ( ( ( made up ) ( some ( of ( their conclusions ) ) ) ) ( to ( bolster ( their hypothesis ) ) ) ) . ) )
(ROOT (S (NP (DT The) (NNP Bell) (NNP Curve) (NNS authors)) (VP (VBD made) (PRT (RP up)) (NP (NP (DT some)) (PP (IN of) (NP (PRP$ their) (NNS conclusions)))) (S (VP (TO to) (VP (VB bolster) (NP (PRP$ their) (NNS hypothesis)))))) (. .)))