Why is it better to test drug this way

exptext

Source

General Social Survey https://gss.norc.org

Question 1042. Why is it better to test the drug this way?

For further details see the official GSS documentation.

Counts by year:

year	iap	correct - control group	correct - don't know	correct - vague reason	correct - wrong reason	no answer to closed ended question	uncodeable	wrong - don't know	wrong - other reason	wrong - reservations about control group	wrong - reservations about sample	Total
1972	1613	-	-	-	-	-	-	-	-	-	-	1613
1973	1504	-	-	-	-	-	-	-	-	-	-	1504
1974	1484	-	-	-	-	-	-	-	-	-	-	1484
1975	1490	-	-	-	-	-	-	-	-	-	-	1490
1976	1499	-	-	-	-	-	-	-	-	-	-	1499
1977	1530	-	-	-	-	-	-	-	-	-	-	1530
1978	1532	-	-	-	-	-	-	-	-	-	-	1532
1980	1468	-	-	-	-	-	-	-	-	-	-	1468
1982	1860	-	-	-	-	-	-	-	-	-	-	1860
1983	1599	-	-	-	-	-	-	-	-	-	-	1599
1984	1473	-	-	-	-	-	-	-	-	-	-	1473
1985	1534	-	-	-	-	-	-	-	-	-	-	1534
1986	1470	-	-	-	-	-	-	-	-	-	-	1470
1987	1819	-	-	-	-	-	-	-	-	-	-	1819
1988	1481	-	-	-	-	-	-	-	-	-	-	1481
1989	1537	-	-	-	-	-	-	-	-	-	-	1537
1990	1372	-	-	-	-	-	-	-	-	-	-	1372
1991	1517	-	-	-	-	-	-	-	-	-	-	1517
1993	1606	-	-	-	-	-	-	-	-	-	-	1606
1994	2992	-	-	-	-	-	-	-	-	-	-	2992
1996	2904	-	-	-	-	-	-	-	-	-	-	2904
1998	2832	-	-	-	-	-	-	-	-	-	-	2832
2000	2817	-	-	-	-	-	-	-	-	-	-	2817
2002	2765	-	-	-	-	-	-	-	-	-	-	2765
2004	2812	-	-	-	-	-	-	-	-	-	-	2812
2006	2646	300	35	450	682	84	2	21	106	27	157	4510
2008	629	199	14	362	513	2	33	8	106	37	120	2023
2010	1364	240	17	114	193	17	-	6	21	10	62	2044
2012	1038	154	33	144	460	11	-	4	55	23	52	1974
2014	1366	194	12	394	347	24	-	2	86	20	93	2538
2016	1526	264	34	428	364	19	-	12	80	36	104	2867
2018	1212	288	28	281	303	14	-	17	57	44	104	2348
2021	4032	-	-	-	-	-	-	-	-	-	-	4032
2022	3544	-	-	-	-	-	-	-	-	-	-	3544
Total	63867	1639	173	2173	2862	171	35	70	511	197	692	72390