Table 1.

Two diagnostic test evaluation models without the gold standard.

		True result(+)		Total	True result(-)		Total
		Test2			Test2
		+	-		+	-
Test1	+	t 11	t 10	t −{1.}	a 11 − t11	a 10 − t10	a −{1.} − t−{1.}
	-	t 01	t 00	t −{0.}	a 01 − t01	a 00 − t00	t −{1.} − t−{0.}
Total		t −{.1}	t −{.0}	t	a −{.1} − t−{.1}	a −{.0} − t−{.0}	n − t