VCF0978 Was R Response Correct: Was a House Candidate an Incumbent

QUESTION:
---------
1958,1964,1966: 
Do you happen to know if (either/the) candidate is already in Congress?  
(IF YES AND 2 MAJOR PARTY CANDIDATES IN DISTRICT:) Which {candidate} was 
that?
1968:
Do you happen to know if (either one of these candidates/if he) is
already in Congress? (IF YES AND 2 MAJOR PARTY CANDIDATES IN DISTRICT:)
Which one?
1978 AND LATER:  
Do you happen to know if [candidate in district where only 1 candidate 
ran] / either [first candidate in district where 2 candidates ran] or 
[second candidate in district where 2 candidates ran] was already in the 
U.S. House of Representatives before the election? 
(IF YES AND 2 MAJOR PARTY CANDIDATES IN DISTRICT:) Which {candidate} was 
that?

VALID_CODES:
------------
1. CORRECT:  correct incumbency status; correct candidate
   [districts w/incumbents running with major party
   opposition]
2. INCORRECT:   incorrect incumbency status; incorrect
   candidate  [districts w/incumbents running with major
   party opposition]

MISSING_CODES:
--------------
9. DK if incumbent; DK which is incumbent; NA if
   incumbent; NA which is incumbent; no major party
   candidate running; no Post IW; abbrev. telephone IW
   (1984); Washington D.C.; short form (1992)
Inap. question not used

NOTES:
------
See VCF0977.
GENERAL NOTE:
If no incumbent was running in R's district and R replied "yes" (1 or
2 major party candidates), then 2 has been coded.  If an incumbent was
running unopposed in R's district and R answered "yes," then 1 has
been coded.
If an incumbent was running with major party opposition in R's district 
and R answered "yes," then R has been coded according to whether R 
correctly identified WHICH candidate was the incumbent.
If R responded that "both" candidates were incumbents but R did not 
live in one of the districts where two 'incumbents' were actually 
running (due to redistricting), then R's response has been considered 
'incorrect'.  If, however, there actually were two 'incumbents' in R's 
congressional district, then an answer of 'both' OR an answer of either 
of the two incumbents' names has been considered 'correct'.
2000 DATA: 
1 case where respondent's district was NA and 3 cases where respondent 
district was misidentified have been coded 9.

WEIGHT:
-------
VCF0009/VCF0009a

TYPE:
-----
Numeric  Dec 0

SOURCE_VARS:
------------
1958:  580097  
1964:  640312  
1966:  660094  
1968:  680385
1978:  780180,780181  
1980:  800913  
1982:  820172
1984:  840929,840932  
1986:  860213,860216  
1988:  880709,880712  
1990:  900232,900235  
1992:  925436,925439  
1994:  940432,940435
1996:  961068,961070  
1998:  980299,980301 
2000:  000194,001353b,001354