( ( ( ( ( Correct outcomes ) ( should ( have ( positive ( outcome ( discrimination values ) ) ) ) ) ) and ) ( ( incorrect outcomes ) ( should ( have ( ( ( negative ( outcome ( discrimination values ) ) ) or ) ( values ( which ( are ( close ( to zero ) ) ) ) ) ) ) ) ) ) . )
(ROOT (S (S (NP (JJ Correct) (NNS outcomes)) (VP (MD should) (VP (VB have) (NP (JJ positive) (NN outcome) (NN discrimination) (NNS values))))) (CC and) (S (NP (JJ incorrect) (NNS outcomes)) (VP (MD should) (VP (VB have) (NP (NP (JJ negative) (NN outcome) (NN discrimination) (NNS values)) (CC or) (NP (NP (NNS values)) (SBAR (WHNP (WDT which)) (S (VP (VBP are) (ADJP (JJ close) (S (VP (TO to) (VP (VB zero))))))))))))) (. .)))
Correct outcomes should have positive outcome discrimination values and incorrect outcomes should have negative outcome discrimination values or values which are close to zero.
(ROOT (S (NP (PRP We)) (VP (VBP call) (NP (NP (DT an) (JJ incorrect) (NN test) (NN result)) (SBAR (WHNP (WDT that)) (S (VP (MD should) (VP (VB have) (VP (VBN been) (ADJP (JJ positive) (NP (NP (DT a) (-LRB- -LRB-) (NN n) (-RRB- -RRB-)) (ADJP (JJ false) (JJ negative))))))))))) (. .)))