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GSS 1972-2022 Cumulative Datafile - Release 2

lftplanekey factor that enables airplane to lift
Text of this Question or Item 
Which of the following is a key factor that enables an airplane to 
lift? {response to acceptDK} {response to probeDK}
Cells contain:
-Valid row pct.
-N of cases		 lftplane
1
air pressure beneath the wing is greater than that above the wing		 2
pressure within the airplane is greater than that of the outside		 3
engine power is greater than that of friction		 4
the plane's wing is lighter than air		 .d
don't know		 .i
iap		 .n
no answer		 ROW
TOTAL
year 1972 -
0		 -
0		 -
0		 -
0		 -
0		 -
1,613		 -
0		 -
1,613
1973 -
0		 -
0		 -
0		 -
0		 -
0		 -
1,504		 -
0		 -
1,504
1974 -
0		 -
0		 -
0		 -
0		 -
0		 -
1,484		 -
0		 -
1,484
1975 -
0		 -
0		 -
0		 -
0		 -
0		 -
1,490		 -
0		 -
1,490
1976 -
0		 -
0		 -
0		 -
0		 -
0		 -
1,499		 -
0		 -
1,499
1977 -
0		 -
0		 -
0		 -
0		 -
0		 -
1,530		 -
0		 -
1,530
1978 -
0		 -
0		 -
0		 -
0		 -
0		 -
1,532		 -
0		 -
1,532
1980 -
0		 -
0		 -
0		 -
0		 -
0		 -
1,468		 -
0		 -
1,468
1982 -
0		 -
0		 -
0		 -
0		 -
0		 -
1,860		 -
0		 -
1,860
1983 -
0		 -
0		 -
0		 -
0		 -
0		 -
1,599		 -
0		 -
1,599
1984 -
0		 -
0		 -
0		 -
0		 -
0		 -
1,473		 -
0		 -
1,473
1985 -
0		 -
0		 -
0		 -
0		 -
0		 -
1,534		 -
0		 -
1,534
1986 -
0		 -
0		 -
0		 -
0		 -
0		 -
1,470		 -
0		 -
1,470
1987 -
0		 -
0		 -
0		 -
0		 -
0		 -
1,819		 -
0		 -
1,819
1988 -
0		 -
0		 -
0		 -
0		 -
0		 -
1,481		 -
0		 -
1,481
1989 -
0		 -
0		 -
0		 -
0		 -
0		 -
1,537		 -
0		 -
1,537
1990 -
0		 -
0		 -
0		 -
0		 -
0		 -
1,372		 -
0		 -
1,372
1991 -
0		 -
0		 -
0		 -
0		 -
0		 -
1,517		 -
0		 -
1,517
1993 -
0		 -
0		 -
0		 -
0		 -
0		 -
1,606		 -
0		 -
1,606
1994 -
0		 -
0		 -
0		 -
0		 -
0		 -
2,992		 -
0		 -
2,992
1996 -
0		 -
0		 -
0		 -
0		 -
0		 -
2,904		 -
0		 -
2,904
1998 -
0		 -
0		 -
0		 -
0		 -
0		 -
2,832		 -
0		 -
2,832
2000 -
0		 -
0		 -
0		 -
0		 -
0		 -
2,817		 -
0		 -
2,817
2002 -
0		 -
0		 -
0		 -
0		 -
0		 -
2,765		 -
0		 -
2,765
2004 -
0		 -
0		 -
0		 -
0		 -
0		 -
2,812		 -
0		 -
2,812
2006 -
0		 -
0		 -
0		 -
0		 -
0		 -
4,510		 -
0		 -
4,510
2008 62.7
799		 7.1
90		 27.1
345		 3.1
40		 -
211		 -
518		 -
20		 100.0
2,023
2010 -
0		 -
0		 -
0		 -
0		 -
0		 -
2,044		 -
0		 -
2,044
2012 -
0		 -
0		 -
0		 -
0		 -
0		 -
1,974		 -
0		 -
1,974
2014 -
0		 -
0		 -
0		 -
0		 -
0		 -
2,538		 -
0		 -
2,538
2016 -
0		 -
0		 -
0		 -
0		 -
0		 -
2,867		 -
0		 -
2,867
2018 -
0		 -
0		 -
0		 -
0		 -
0		 -
2,348		 -
0		 -
2,348
2021 -
0		 -
0		 -
0		 -
0		 -
0		 -
4,032		 -
0		 -
4,032
2022 -
0		 -
0		 -
0		 -
0		 -
0		 -
3,544		 -
0		 -
3,544
COL TOTAL 62.7
799		 7.1
90		 27.1
345		 3.1
40		 -
211		 -
70,885		 -
20		 100.0
72,390
Properties
Data type: numeric
Missing-data codes: .d,.i,.j,.m,.n,.p,.q,.r,.s,.u,.x,.y,.z
stormtxtdo you see lightning before hearing thunder
Cells contain:
-Valid row pct.
-N of cases		 stormtxt
1
complete		 2
partial		 3
unsatisfactory/incorrect		 .d
don't know		 .i
iap		 .n
no answer		 ROW
TOTAL
year 1972 -
0		 -
0		 -
0		 -
0		 -
1,613		 -
0		 -
1,613
1973 -
0		 -
0		 -
0		 -
0		 -
1,504		 -
0		 -
1,504
1974 -
0		 -
0		 -
0		 -
0		 -
1,484		 -
0		 -
1,484
1975 -
0		 -
0		 -
0		 -
0		 -
1,490		 -
0		 -
1,490
1976 -
0		 -
0		 -
0		 -
0		 -
1,499		 -
0		 -
1,499
1977 -
0		 -
0		 -
0		 -
0		 -
1,530		 -
0		 -
1,530
1978 -
0		 -
0		 -
0		 -
0		 -
1,532		 -
0		 -
1,532
1980 -
0		 -
0		 -
0		 -
0		 -
1,468		 -
0		 -
1,468
1982 -
0		 -
0		 -
0		 -
0		 -
1,860		 -
0		 -
1,860
1983 -
0		 -
0		 -
0		 -
0		 -
1,599		 -
0		 -
1,599
1984 -
0		 -
0		 -
0		 -
0		 -
1,473		 -
0		 -
1,473
1985 -
0		 -
0		 -
0		 -
0		 -
1,534		 -
0		 -
1,534
1986 -
0		 -
0		 -
0		 -
0		 -
1,470		 -
0		 -
1,470
1987 -
0		 -
0		 -
0		 -
0		 -
1,819		 -
0		 -
1,819
1988 -
0		 -
0		 -
0		 -
0		 -
1,481		 -
0		 -
1,481
1989 -
0		 -
0		 -
0		 -
0		 -
1,537		 -
0		 -
1,537
1990 -
0		 -
0		 -
0		 -
0		 -
1,372		 -
0		 -
1,372
1991 -
0		 -
0		 -
0		 -
0		 -
1,517		 -
0		 -
1,517
1993 -
0		 -
0		 -
0		 -
0		 -
1,606		 -
0		 -
1,606
1994 -
0		 -
0		 -
0		 -
0		 -
2,992		 -
0		 -
2,992
1996 -
0		 -
0		 -
0		 -
0		 -
2,904		 -
0		 -
2,904
1998 -
0		 -
0		 -
0		 -
0		 -
2,832		 -
0		 -
2,832
2000 -
0		 -
0		 -
0		 -
0		 -
2,817		 -
0		 -
2,817
2002 -
0		 -
0		 -
0		 -
0		 -
2,765		 -
0		 -
2,765
2004 -
0		 -
0		 -
0		 -
0		 -
2,812		 -
0		 -
2,812
2006 -
0		 -
0		 -
0		 -
0		 -
4,510		 -
0		 -
4,510
2008 64.6
656		 6.0
61		 29.4
299		 -
466		 -
518		 -
23		 100.0
2,023
2010 -
0		 -
0		 -
0		 -
0		 -
2,044		 -
0		 -
2,044
2012 -
0		 -
0		 -
0		 -
0		 -
1,974		 -
0		 -
1,974
2014 -
0		 -
0		 -
0		 -
0		 -
2,538		 -
0		 -
2,538
2016 -
0		 -
0		 -
0		 -
0		 -
2,867		 -
0		 -
2,867
2018 -
0		 -
0		 -
0		 -
0		 -
2,348		 -
0		 -
2,348
2021 -
0		 -
0		 -
0		 -
0		 -
4,032		 -
0		 -
4,032
2022 -
0		 -
0		 -
0		 -
0		 -
3,544		 -
0		 -
3,544
COL TOTAL 64.6
656		 6.0
61		 29.4
299		 -
466		 -
70,885		 -
23		 100.0
72,390
Properties
Data type: numeric
Missing-data codes: .d,.i,.j,.m,.n,.p,.q,.r,.s,.u,.x,.y,.z
litmstxtwhy litmus paper doesn't change color in mixed solution
Cells contain:
-Valid row pct.
-N of cases		 litmstxt
1
complete		 2
partial		 3
unsatisfactory/incorrect		 .d
don't know		 .i
iap		 .n
no answer		 ROW
TOTAL
year 1972 -
0		 -
0		 -
0		 -
0		 -
1,613		 -
0		 -
1,613
1973 -
0		 -
0		 -
0		 -
0		 -
1,504		 -
0		 -
1,504
1974 -
0		 -
0		 -
0		 -
0		 -
1,484		 -
0		 -
1,484
1975 -
0		 -
0		 -
0		 -
0		 -
1,490		 -
0		 -
1,490
1976 -
0		 -
0		 -
0		 -
0		 -
1,499		 -
0		 -
1,499
1977 -
0		 -
0		 -
0		 -
0		 -
1,530		 -
0		 -
1,530
1978 -
0		 -
0		 -
0		 -
0		 -
1,532		 -
0		 -
1,532
1980 -
0		 -
0		 -
0		 -
0		 -
1,468		 -
0		 -
1,468
1982 -
0		 -
0		 -
0		 -
0		 -
1,860		 -
0		 -
1,860
1983 -
0		 -
0		 -
0		 -
0		 -
1,599		 -
0		 -
1,599
1984 -
0		 -
0		 -
0		 -
0		 -
1,473		 -
0		 -
1,473
1985 -
0		 -
0		 -
0		 -
0		 -
1,534		 -
0		 -
1,534
1986 -
0		 -
0		 -
0		 -
0		 -
1,470		 -
0		 -
1,470
1987 -
0		 -
0		 -
0		 -
0		 -
1,819		 -
0		 -
1,819
1988 -
0		 -
0		 -
0		 -
0		 -
1,481		 -
0		 -
1,481
1989 -
0		 -
0		 -
0		 -
0		 -
1,537		 -
0		 -
1,537
1990 -
0		 -
0		 -
0		 -
0		 -
1,372		 -
0		 -
1,372
1991 -
0		 -
0		 -
0		 -
0		 -
1,517		 -
0		 -
1,517
1993 -
0		 -
0		 -
0		 -
0		 -
1,606		 -
0		 -
1,606
1994 -
0		 -
0		 -
0		 -
0		 -
2,992		 -
0		 -
2,992
1996 -
0		 -
0		 -
0		 -
0		 -
2,904		 -
0		 -
2,904
1998 -
0		 -
0		 -
0		 -
0		 -
2,832		 -
0		 -
2,832
2000 -
0		 -
0		 -
0		 -
0		 -
2,817		 -
0		 -
2,817
2002 -
0		 -
0		 -
0		 -
0		 -
2,765		 -
0		 -
2,765
2004 -
0		 -
0		 -
0		 -
0		 -
2,812		 -
0		 -
2,812
2006 -
0		 -
0		 -
0		 -
0		 -
4,510		 -
0		 -
4,510
2008 46.3
292		 30.3
191		 23.3
147		 -
849		 -
518		 -
26		 100.0
2,023
2010 -
0		 -
0		 -
0		 -
0		 -
2,044		 -
0		 -
2,044
2012 -
0		 -
0		 -
0		 -
0		 -
1,974		 -
0		 -
1,974
2014 -
0		 -
0		 -
0		 -
0		 -
2,538		 -
0		 -
2,538
2016 -
0		 -
0		 -
0		 -
0		 -
2,867		 -
0		 -
2,867
2018 -
0		 -
0		 -
0		 -
0		 -
2,348		 -
0		 -
2,348
2021 -
0		 -
0		 -
0		 -
0		 -
4,032		 -
0		 -
4,032
2022 -
0		 -
0		 -
0		 -
0		 -
3,544		 -
0		 -
3,544
COL TOTAL 46.3
292		 30.3
191		 23.3
147		 -
849		 -
70,885		 -
26		 100.0
72,390
Properties
Data type: numeric
Missing-data codes: .d,.i,.j,.m,.n,.p,.q,.r,.s,.u,.x,.y,.z
goldfishexperiment about goldfish and temperature
Text of this Question or Item 
Please look at Card I-2.  A student wants to find out if 
temperature affects the behavior of goldfish. He has 4 fish bowls and 
20 goldfish.  Which of the experiments on Card I-2 should he do?      
{response to acceptDK} {response to probeDK}
Cells contain:
-Valid row pct.
-N of cases		 goldfish
1
experiment a		 2
experiment b		 3
experiment c		 4
experiment d		 .d
don't know		 .i
iap		 .n
no answer		 ROW
TOTAL
year 1972 -
0		 -
0		 -
0		 -
0		 -
0		 -
1,613		 -
0		 -
1,613
1973 -
0		 -
0		 -
0		 -
0		 -
0		 -
1,504		 -
0		 -
1,504
1974 -
0		 -
0		 -
0		 -
0		 -
0		 -
1,484		 -
0		 -
1,484
1975 -
0		 -
0		 -
0		 -
0		 -
0		 -
1,490		 -
0		 -
1,490
1976 -
0		 -
0		 -
0		 -
0		 -
0		 -
1,499		 -
0		 -
1,499
1977 -
0		 -
0		 -
0		 -
0		 -
0		 -
1,530		 -
0		 -
1,530
1978 -
0		 -
0		 -
0		 -
0		 -
0		 -
1,532		 -
0		 -
1,532
1980 -
0		 -
0		 -
0		 -
0		 -
0		 -
1,468		 -
0		 -
1,468
1982 -
0		 -
0		 -
0		 -
0		 -
0		 -
1,860		 -
0		 -
1,860
1983 -
0		 -
0		 -
0		 -
0		 -
0		 -
1,599		 -
0		 -
1,599
1984 -
0		 -
0		 -
0		 -
0		 -
0		 -
1,473		 -
0		 -
1,473
1985 -
0		 -
0		 -
0		 -
0		 -
0		 -
1,534		 -
0		 -
1,534
1986 -
0		 -
0		 -
0		 -
0		 -
0		 -
1,470		 -
0		 -
1,470
1987 -
0		 -
0		 -
0		 -
0		 -
0		 -
1,819		 -
0		 -
1,819
1988 -
0		 -
0		 -
0		 -
0		 -
0		 -
1,481		 -
0		 -
1,481
1989 -
0		 -
0		 -
0		 -
0		 -
0		 -
1,537		 -
0		 -
1,537
1990 -
0		 -
0		 -
0		 -
0		 -
0		 -
1,372		 -
0		 -
1,372
1991 -
0		 -
0		 -
0		 -
0		 -
0		 -
1,517		 -
0		 -
1,517
1993 -
0		 -
0		 -
0		 -
0		 -
0		 -
1,606		 -
0		 -
1,606
1994 -
0		 -
0		 -
0		 -
0		 -
0		 -
2,992		 -
0		 -
2,992
1996 -
0		 -
0		 -
0		 -
0		 -
0		 -
2,904		 -
0		 -
2,904
1998 -
0		 -
0		 -
0		 -
0		 -
0		 -
2,832		 -
0		 -
2,832
2000 -
0		 -
0		 -
0		 -
0		 -
0		 -
2,817		 -
0		 -
2,817
2002 -
0		 -
0		 -
0		 -
0		 -
0		 -
2,765		 -
0		 -
2,765
2004 -
0		 -
0		 -
0		 -
0		 -
0		 -
2,812		 -
0		 -
2,812
2006 -
0		 -
0		 -
0		 -
0		 -
0		 -
4,510		 -
0		 -
4,510
2008 73.3
761		 8.1
84		 11.2
116		 7.4
77		 -
248		 -
709		 -
28		 100.0
2,023
2010 -
0		 -
0		 -
0		 -
0		 -
0		 -
2,044		 -
0		 -
2,044
2012 -
0		 -
0		 -
0		 -
0		 -
0		 -
1,974		 -
0		 -
1,974
2014 -
0		 -
0		 -
0		 -
0		 -
0		 -
2,538		 -
0		 -
2,538
2016 -
0		 -
0		 -
0		 -
0		 -
0		 -
2,867		 -
0		 -
2,867
2018 -
0		 -
0		 -
0		 -
0		 -
0		 -
2,348		 -
0		 -
2,348
2021 -
0		 -
0		 -
0		 -
0		 -
0		 -
4,032		 -
0		 -
4,032
2022 -
0		 -
0		 -
0		 -
0		 -
0		 -
3,544		 -
0		 -
3,544
COL TOTAL 73.3
761		 8.1
84		 11.2
116		 7.4
77		 -
248		 -
71,076		 -
28		 100.0
72,390
Properties
Data type: numeric
Missing-data codes: .d,.i,.j,.m,.n,.p,.q,.r,.s,.u,.x,.y,.z
salth2oocean water for vegetables
Text of this Question or Item 
A farmer thinks that the vegetables on her farm are not getting 
enough water. Her son suggests that they use water from the nearby 
ocean to water the vegetables. Is this a good idea?                   
{response to acceptDK} {response to probeDK}
Cells contain:
-Valid row pct.
-N of cases		 salth2o
1
yes, because there is plenty of ocean water		 2
yes, because ocean water has many natural fertilizers		 3
no, because ocean water is too salty for plants grown on land		 4
no, because ocean water is much more polluted than rainwater		 .d
don't know		 .i
iap		 .n
no answer		 ROW
TOTAL
year 1972 -
0		 -
0		 -
0		 -
0		 -
0		 -
1,613		 -
0		 -
1,613
1973 -
0		 -
0		 -
0		 -
0		 -
0		 -
1,504		 -
0		 -
1,504
1974 -
0		 -
0		 -
0		 -
0		 -
0		 -
1,484		 -
0		 -
1,484
1975 -
0		 -
0		 -
0		 -
0		 -
0		 -
1,490		 -
0		 -
1,490
1976 -
0		 -
0		 -
0		 -
0		 -
0		 -
1,499		 -
0		 -
1,499
1977 -
0		 -
0		 -
0		 -
0		 -
0		 -
1,530		 -
0		 -
1,530
1978 -
0		 -
0		 -
0		 -
0		 -
0		 -
1,532		 -
0		 -
1,532
1980 -
0		 -
0		 -
0		 -
0		 -
0		 -
1,468		 -
0		 -
1,468
1982 -
0		 -
0		 -
0		 -
0		 -
0		 -
1,860		 -
0		 -
1,860
1983 -
0		 -
0		 -
0		 -
0		 -
0		 -
1,599		 -
0		 -
1,599
1984 -
0		 -
0		 -
0		 -
0		 -
0		 -
1,473		 -
0		 -
1,473
1985 -
0		 -
0		 -
0		 -
0		 -
0		 -
1,534		 -
0		 -
1,534
1986 -
0		 -
0		 -
0		 -
0		 -
0		 -
1,470		 -
0		 -
1,470
1987 -
0		 -
0		 -
0		 -
0		 -
0		 -
1,819		 -
0		 -
1,819
1988 -
0		 -
0		 -
0		 -
0		 -
0		 -
1,481		 -
0		 -
1,481
1989 -
0		 -
0		 -
0		 -
0		 -
0		 -
1,537		 -
0		 -
1,537
1990 -
0		 -
0		 -
0		 -
0		 -
0		 -
1,372		 -
0		 -
1,372
1991 -
0		 -
0		 -
0		 -
0		 -
0		 -
1,517		 -
0		 -
1,517
1993 -
0		 -
0		 -
0		 -
0		 -
0		 -
1,606		 -
0		 -
1,606
1994 -
0		 -
0		 -
0		 -
0		 -
0		 -
2,992		 -
0		 -
2,992
1996 -
0		 -
0		 -
0		 -
0		 -
0		 -
2,904		 -
0		 -
2,904
1998 -
0		 -
0		 -
0		 -
0		 -
0		 -
2,832		 -
0		 -
2,832
2000 -
0		 -
0		 -
0		 -
0		 -
0		 -
2,817		 -
0		 -
2,817
2002 -
0		 -
0		 -
0		 -
0		 -
0		 -
2,765		 -
0		 -
2,765
2004 -
0		 -
0		 -
0		 -
0		 -
0		 -
2,812		 -
0		 -
2,812
2006 -
0		 -
0		 -
0		 -
0		 -
0		 -
4,510		 -
0		 -
4,510
2008 1.6
23		 2.5
36		 88.8
1,262		 7.0
100		 -
64		 -
518		 -
20		 100.0
2,023
2010 -
0		 -
0		 -
0		 -
0		 -
0		 -
2,044		 -
0		 -
2,044
2012 -
0		 -
0		 -
0		 -
0		 -
0		 -
1,974		 -
0		 -
1,974
2014 -
0		 -
0		 -
0		 -
0		 -
0		 -
2,538		 -
0		 -
2,538
2016 -
0		 -
0		 -
0		 -
0		 -
0		 -
2,867		 -
0		 -
2,867
2018 -
0		 -
0		 -
0		 -
0		 -
0		 -
2,348		 -
0		 -
2,348
2021 -
0		 -
0		 -
0		 -
0		 -
0		 -
4,032		 -
0		 -
4,032
2022 -
0		 -
0		 -
0		 -
0		 -
0		 -
3,544		 -
0		 -
3,544
COL TOTAL 1.6
23		 2.5
36		 88.8
1,262		 7.0
100		 -
64		 -
70,885		 -
20		 100.0
72,390
Properties
Data type: numeric
Missing-data codes: .d,.i,.j,.m,.n,.p,.q,.r,.s,.u,.x,.y,.z
erosionexample of erosion
Text of this Question or Item 
Which one of the following is not an example of erosion?              
{response to acceptDK} {response to probeDK}
Cells contain:
-Valid row pct.
-N of cases		 erosion
1
the wind in the desert blows sand against a rock		 2
a glacier picks up boulders as it moves		 3
a flood washes over a riverbank, and the water carries small soil particles downstream		 4
an icy winter causes the pavement in a road to crack		 .d
don't know		 .i
iap		 .n
no answer		 ROW
TOTAL
year 1972 -
0		 -
0		 -
0		 -
0		 -
0		 -
1,613		 -
0		 -
1,613
1973 -
0		 -
0		 -
0		 -
0		 -
0		 -
1,504		 -
0		 -
1,504
1974 -
0		 -
0		 -
0		 -
0		 -
0		 -
1,484		 -
0		 -
1,484
1975 -
0		 -
0		 -
0		 -
0		 -
0		 -
1,490		 -
0		 -
1,490
1976 -
0		 -
0		 -
0		 -
0		 -
0		 -
1,499		 -
0		 -
1,499
1977 -
0		 -
0		 -
0		 -
0		 -
0		 -
1,530		 -
0		 -
1,530
1978 -
0		 -
0		 -
0		 -
0		 -
0		 -
1,532		 -
0		 -
1,532
1980 -
0		 -
0		 -
0		 -
0		 -
0		 -
1,468		 -
0		 -
1,468
1982 -
0		 -
0		 -
0		 -
0		 -
0		 -
1,860		 -
0		 -
1,860
1983 -
0		 -
0		 -
0		 -
0		 -
0		 -
1,599		 -
0		 -
1,599
1984 -
0		 -
0		 -
0		 -
0		 -
0		 -
1,473		 -
0		 -
1,473
1985 -
0		 -
0		 -
0		 -
0		 -
0		 -
1,534		 -
0		 -
1,534
1986 -
0		 -
0		 -
0		 -
0		 -
0		 -
1,470		 -
0		 -
1,470
1987 -
0		 -
0		 -
0		 -
0		 -
0		 -
1,819		 -
0		 -
1,819
1988 -
0		 -
0		 -
0		 -
0		 -
0		 -
1,481		 -
0		 -
1,481
1989 -
0		 -
0		 -
0		 -
0		 -
0		 -
1,537		 -
0		 -
1,537
1990 -
0		 -
0		 -
0		 -
0		 -
0		 -
1,372		 -
0		 -
1,372
1991 -
0		 -
0		 -
0		 -
0		 -
0		 -
1,517		 -
0		 -
1,517
1993 -
0		 -
0		 -
0		 -
0		 -
0		 -
1,606		 -
0		 -
1,606
1994 -
0		 -
0		 -
0		 -
0		 -
0		 -
2,992		 -
0		 -
2,992
1996 -
0		 -
0		 -
0		 -
0		 -
0		 -
2,904		 -
0		 -
2,904
1998 -
0		 -
0		 -
0		 -
0		 -
0		 -
2,832		 -
0		 -
2,832
2000 -
0		 -
0		 -
0		 -
0		 -
0		 -
2,817		 -
0		 -
2,817
2002 -
0		 -
0		 -
0		 -
0		 -
0		 -
2,765		 -
0		 -
2,765
2004 -
0		 -
0		 -
0		 -
0		 -
0		 -
2,812		 -
0		 -
2,812
2006 -
0		 -
0		 -
0		 -
0		 -
0		 -
4,510		 -
0		 -
4,510
2008 11.1
147		 18.5
245		 7.5
99		 62.8
830		 -
162		 -
518		 -
22		 100.0
2,023
2010 -
0		 -
0		 -
0		 -
0		 -
0		 -
2,044		 -
0		 -
2,044
2012 -
0		 -
0		 -
0		 -
0		 -
0		 -
1,974		 -
0		 -
1,974
2014 -
0		 -
0		 -
0		 -
0		 -
0		 -
2,538		 -
0		 -
2,538
2016 -
0		 -
0		 -
0		 -
0		 -
0		 -
2,867		 -
0		 -
2,867
2018 -
0		 -
0		 -
0		 -
0		 -
0		 -
2,348		 -
0		 -
2,348
2021 -
0		 -
0		 -
0		 -
0		 -
0		 -
4,032		 -
0		 -
4,032
2022 -
0		 -
0		 -
0		 -
0		 -
0		 -
3,544		 -
0		 -
3,544
COL TOTAL 11.1
147		 18.5
245		 7.5
99		 62.8
830		 -
162		 -
70,885		 -
22		 100.0
72,390
Properties
Data type: numeric
Missing-data codes: .d,.i,.j,.m,.n,.p,.q,.r,.s,.u,.x,.y,.z
genestraits are transferred over generation
Text of this Question or Item 
Traits are transferred from generation to generation through the...   
{response to acceptDK} {response to probeDK}
Cells contain:
-Valid row pct.
-N of cases		 genes
1
sperm only		 2
egg only		 3
sperm and egg		 4
testes		 .d
don't know		 .i
iap		 .n
no answer		 ROW
TOTAL
year 1972 -
0		 -
0		 -
0		 -
0		 -
0		 -
1,613		 -
0		 -
1,613
1973 -
0		 -
0		 -
0		 -
0		 -
0		 -
1,504		 -
0		 -
1,504
1974 -
0		 -
0		 -
0		 -
0		 -
0		 -
1,484		 -
0		 -
1,484
1975 -
0		 -
0		 -
0		 -
0		 -
0		 -
1,490		 -
0		 -
1,490
1976 -
0		 -
0		 -
0		 -
0		 -
0		 -
1,499		 -
0		 -
1,499
1977 -
0		 -
0		 -
0		 -
0		 -
0		 -
1,530		 -
0		 -
1,530
1978 -
0		 -
0		 -
0		 -
0		 -
0		 -
1,532		 -
0		 -
1,532
1980 -
0		 -
0		 -
0		 -
0		 -
0		 -
1,468		 -
0		 -
1,468
1982 -
0		 -
0		 -
0		 -
0		 -
0		 -
1,860		 -
0		 -
1,860
1983 -
0		 -
0		 -
0		 -
0		 -
0		 -
1,599		 -
0		 -
1,599
1984 -
0		 -
0		 -
0		 -
0		 -
0		 -
1,473		 -
0		 -
1,473
1985 -
0		 -
0		 -
0		 -
0		 -
0		 -
1,534		 -
0		 -
1,534
1986 -
0		 -
0		 -
0		 -
0		 -
0		 -
1,470		 -
0		 -
1,470
1987 -
0		 -
0		 -
0		 -
0		 -
0		 -
1,819		 -
0		 -
1,819
1988 -
0		 -
0		 -
0		 -
0		 -
0		 -
1,481		 -
0		 -
1,481
1989 -
0		 -
0		 -
0		 -
0		 -
0		 -
1,537		 -
0		 -
1,537
1990 -
0		 -
0		 -
0		 -
0		 -
0		 -
1,372		 -
0		 -
1,372
1991 -
0		 -
0		 -
0		 -
0		 -
0		 -
1,517		 -
0		 -
1,517
1993 -
0		 -
0		 -
0		 -
0		 -
0		 -
1,606		 -
0		 -
1,606
1994 -
0		 -
0		 -
0		 -
0		 -
0		 -
2,992		 -
0		 -
2,992
1996 -
0		 -
0		 -
0		 -
0		 -
0		 -
2,904		 -
0		 -
2,904
1998 -
0		 -
0		 -
0		 -
0		 -
0		 -
2,832		 -
0		 -
2,832
2000 -
0		 -
0		 -
0		 -
0		 -
0		 -
2,817		 -
0		 -
2,817
2002 -
0		 -
0		 -
0		 -
0		 -
0		 -
2,765		 -
0		 -
2,765
2004 -
0		 -
0		 -
0		 -
0		 -
0		 -
2,812		 -
0		 -
2,812
2006 -
0		 -
0		 -
0		 -
0		 -
0		 -
4,510		 -
0		 -
4,510
2008 7.1
95		 2.3
31		 88.3
1,178		 2.2
30		 -
153		 -
518		 -
18		 100.0
2,023
2010 -
0		 -
0		 -
0		 -
0		 -
0		 -
2,044		 -
0		 -
2,044
2012 -
0		 -
0		 -
0		 -
0		 -
0		 -
1,974		 -
0		 -
1,974
2014 -
0		 -
0		 -
0		 -
0		 -
0		 -
2,538		 -
0		 -
2,538
2016 -
0		 -
0		 -
0		 -
0		 -
0		 -
2,867		 -
0		 -
2,867
2018 -
0		 -
0		 -
0		 -
0		 -
0		 -
2,348		 -
0		 -
2,348
2021 -
0		 -
0		 -
0		 -
0		 -
0		 -
4,032		 -
0		 -
4,032
2022 -
0		 -
0		 -
0		 -
0		 -
0		 -
3,544		 -
0		 -
3,544
COL TOTAL 7.1
95		 2.3
31		 88.3
1,178		 2.2
30		 -
153		 -
70,885		 -
18		 100.0
72,390
Properties
Data type: numeric
Missing-data codes: .d,.i,.j,.m,.n,.p,.q,.r,.s,.u,.x,.y,.z
gillshow fish get oxygen
Text of this Question or Item 
How do most fish get the oxygen they need to survive?                 
{response to acceptDK} {response to probeDK}
Cells contain:
-Valid row pct.
-N of cases		 gills
1
they take in water and break it down into hydrogen and oxygen		 2
using their gills, they take in oxygen that is dissolved in water		 3
they get their oxygen from the food they eat		 4
they come to the surface every few minutes to breathe air into their lungs		 .d
don't know		 .i
iap		 .n
no answer		 ROW
TOTAL
year 1972 -
0		 -
0		 -
0		 -
0		 -
0		 -
1,613		 -
0		 -
1,613
1973 -
0		 -
0		 -
0		 -
0		 -
0		 -
1,504		 -
0		 -
1,504
1974 -
0		 -
0		 -
0		 -
0		 -
0		 -
1,484		 -
0		 -
1,484
1975 -
0		 -
0		 -
0		 -
0		 -
0		 -
1,490		 -
0		 -
1,490
1976 -
0		 -
0		 -
0		 -
0		 -
0		 -
1,499		 -
0		 -
1,499
1977 -
0		 -
0		 -
0		 -
0		 -
0		 -
1,530		 -
0		 -
1,530
1978 -
0		 -
0		 -
0		 -
0		 -
0		 -
1,532		 -
0		 -
1,532
1980 -
0		 -
0		 -
0		 -
0		 -
0		 -
1,468		 -
0		 -
1,468
1982 -
0		 -
0		 -
0		 -
0		 -
0		 -
1,860		 -
0		 -
1,860
1983 -
0		 -
0		 -
0		 -
0		 -
0		 -
1,599		 -
0		 -
1,599
1984 -
0		 -
0		 -
0		 -
0		 -
0		 -
1,473		 -
0		 -
1,473
1985 -
0		 -
0		 -
0		 -
0		 -
0		 -
1,534		 -
0		 -
1,534
1986 -
0		 -
0		 -
0		 -
0		 -
0		 -
1,470		 -
0		 -
1,470
1987 -
0		 -
0		 -
0		 -
0		 -
0		 -
1,819		 -
0		 -
1,819
1988 -
0		 -
0		 -
0		 -
0		 -
0		 -
1,481		 -
0		 -
1,481
1989 -
0		 -
0		 -
0		 -
0		 -
0		 -
1,537		 -
0		 -
1,537
1990 -
0		 -
0		 -
0		 -
0		 -
0		 -
1,372		 -
0		 -
1,372
1991 -
0		 -
0		 -
0		 -
0		 -
0		 -
1,517		 -
0		 -
1,517
1993 -
0		 -
0		 -
0		 -
0		 -
0		 -
1,606		 -
0		 -
1,606
1994 -
0		 -
0		 -
0		 -
0		 -
0		 -
2,992		 -
0		 -
2,992
1996 -
0		 -
0		 -
0		 -
0		 -
0		 -
2,904		 -
0		 -
2,904
1998 -
0		 -
0		 -
0		 -
0		 -
0		 -
2,832		 -
0		 -
2,832
2000 -
0		 -
0		 -
0		 -
0		 -
0		 -
2,817		 -
0		 -
2,817
2002 -
0		 -
0		 -
0		 -
0		 -
0		 -
2,765		 -
0		 -
2,765
2004 -
0		 -
0		 -
0		 -
0		 -
0		 -
2,812		 -
0		 -
2,812
2006 -
0		 -
0		 -
0		 -
0		 -
0		 -
4,510		 -
0		 -
4,510
2008 9.9
137		 81.6
1,124		 2.1
29		 6.3
87		 -
107		 -
518		 -
21		 100.0
2,023
2010 -
0		 -
0		 -
0		 -
0		 -
0		 -
2,044		 -
0		 -
2,044
2012 -
0		 -
0		 -
0		 -
0		 -
0		 -
1,974		 -
0		 -
1,974
2014 -
0		 -
0		 -
0		 -
0		 -
0		 -
2,538		 -
0		 -
2,538
2016 -
0		 -
0		 -
0		 -
0		 -
0		 -
2,867		 -
0		 -
2,867
2018 -
0		 -
0		 -
0		 -
0		 -
0		 -
2,348		 -
0		 -
2,348
2021 -
0		 -
0		 -
0		 -
0		 -
0		 -
4,032		 -
0		 -
4,032
2022 -
0		 -
0		 -
0		 -
0		 -
0		 -
3,544		 -
0		 -
3,544
COL TOTAL 9.9
137		 81.6
1,124		 2.1
29		 6.3
87		 -
107		 -
70,885		 -
21		 100.0
72,390
Properties
Data type: numeric
Missing-data codes: .d,.i,.j,.m,.n,.p,.q,.r,.s,.u,.x,.y,.z
upbreathwhy short breath at the top of a mountain
Text of this Question or Item 
For which reason may people experience shortness of breath more 
quickly at the top of a mountain than along a seashore?               
{response to acceptDK} {response to probeDK}
Cells contain:
-Valid row pct.
-N of cases		 upbreath
1
a slower pulse rate		 2
a greater gravitational force on the body		 3
a lower percent of oxygen in the blood		 4
a faster heartbeat		 5
a slower circulation of blood		 .d
don't know		 .i
iap		 .n
no answer		 ROW
TOTAL
year 1972 -
0		 -
0		 -
0		 -
0		 -
0		 -
0		 -
1,613		 -
0		 -
1,613
1973 -
0		 -
0		 -
0		 -
0		 -
0		 -
0		 -
1,504		 -
0		 -
1,504
1974 -
0		 -
0		 -
0		 -
0		 -
0		 -
0		 -
1,484		 -
0		 -
1,484
1975 -
0		 -
0		 -
0		 -
0		 -
0		 -
0		 -
1,490		 -
0		 -
1,490
1976 -
0		 -
0		 -
0		 -
0		 -
0		 -
0		 -
1,499		 -
0		 -
1,499
1977 -
0		 -
0		 -
0		 -
0		 -
0		 -
0		 -
1,530		 -
0		 -
1,530
1978 -
0		 -
0		 -
0		 -
0		 -
0		 -
0		 -
1,532		 -
0		 -
1,532
1980 -
0		 -
0		 -
0		 -
0		 -
0		 -
0		 -
1,468		 -
0		 -
1,468
1982 -
0		 -
0		 -
0		 -
0		 -
0		 -
0		 -
1,860		 -
0		 -
1,860
1983 -
0		 -
0		 -
0		 -
0		 -
0		 -
0		 -
1,599		 -
0		 -
1,599
1984 -
0		 -
0		 -
0		 -
0		 -
0		 -
0		 -
1,473		 -
0		 -
1,473
1985 -
0		 -
0		 -
0		 -
0		 -
0		 -
0		 -
1,534		 -
0		 -
1,534
1986 -
0		 -
0		 -
0		 -
0		 -
0		 -
0		 -
1,470		 -
0		 -
1,470
1987 -
0		 -
0		 -
0		 -
0		 -
0		 -
0		 -
1,819		 -
0		 -
1,819
1988 -
0		 -
0		 -
0		 -
0		 -
0		 -
0		 -
1,481		 -
0		 -
1,481
1989 -
0		 -
0		 -
0		 -
0		 -
0		 -
0		 -
1,537		 -
0		 -
1,537
1990 -
0		 -
0		 -
0		 -
0		 -
0		 -
0		 -
1,372		 -
0		 -
1,372
1991 -
0		 -
0		 -
0		 -
0		 -
0		 -
0		 -
1,517		 -
0		 -
1,517
1993 -
0		 -
0		 -
0		 -
0		 -
0		 -
0		 -
1,606		 -
0		 -
1,606
1994 -
0		 -
0		 -
0		 -
0		 -
0		 -
0		 -
2,992		 -
0		 -
2,992
1996 -
0		 -
0		 -
0		 -
0		 -
0		 -
0		 -
2,904		 -
0		 -
2,904
1998 -
0		 -
0		 -
0		 -
0		 -
0		 -
0		 -
2,832		 -
0		 -
2,832
2000 -
0		 -
0		 -
0		 -
0		 -
0		 -
0		 -
2,817		 -
0		 -
2,817
2002 -
0		 -
0		 -
0		 -
0		 -
0		 -
0		 -
2,765		 -
0		 -
2,765
2004 -
0		 -
0		 -
0		 -
0		 -
0		 -
0		 -
2,812		 -
0		 -
2,812
2006 -
0		 -
0		 -
0		 -
0		 -
0		 -
0		 -
4,510		 -
0		 -
4,510
2008 1.8
24		 13.4
181		 75.5
1,016		 5.0
67		 4.3
58		 -
137		 -
518		 -
22		 100.0
2,023
2010 -
0		 -
0		 -
0		 -
0		 -
0		 -
0		 -
2,044		 -
0		 -
2,044
2012 -
0		 -
0		 -
0		 -
0		 -
0		 -
0		 -
1,974		 -
0		 -
1,974
2014 -
0		 -
0		 -
0		 -
0		 -
0		 -
0		 -
2,538		 -
0		 -
2,538
2016 -
0		 -
0		 -
0		 -
0		 -
0		 -
0		 -
2,867		 -
0		 -
2,867
2018 -
0		 -
0		 -
0		 -
0		 -
0		 -
0		 -
2,348		 -
0		 -
2,348
2021 -
0		 -
0		 -
0		 -
0		 -
0		 -
0		 -
4,032		 -
0		 -
4,032
2022 -
0		 -
0		 -
0		 -
0		 -
0		 -
0		 -
3,544		 -
0		 -
3,544
COL TOTAL 1.8
24		 13.4
181		 75.5
1,016		 5.0
67		 4.3
58		 -
137		 -
70,885		 -
22		 100.0
72,390
Properties
Data type: numeric
Missing-data codes: .d,.i,.j,.m,.n,.p,.q,.r,.s,.u,.x,.y,.z
daynightwhen did most errors occur
Text of this Question or Item 
Please look at Card I-3. Day-night rhythms dramatically affect 
our bodies.  Probably no body system is more influenced than the 
nervous system. The figure on Card I-3 illustrates the number of 
errors made by shift workers in different portions of
Based on the data illustrated in the figure, during which of 
these time periods did the most errors occur?                                                
{response to acceptDK} {response to probeDK}
Cells contain:
-Valid row pct.
-N of cases		 daynight
1
2 a.m. to 4 a.m.		 2
8 a.m. to 10 a.m.		 3
12 p.m. to 2 p.m.		 4
2 p.m. to 4 p.m.		 5
8 p.m. to 10 p.m.		 .d
don't know		 .i
iap		 .n
no answer		 ROW
TOTAL
year 1972 -
0		 -
0		 -
0		 -
0		 -
0		 -
0		 -
1,613		 -
0		 -
1,613
1973 -
0		 -
0		 -
0		 -
0		 -
0		 -
0		 -
1,504		 -
0		 -
1,504
1974 -
0		 -
0		 -
0		 -
0		 -
0		 -
0		 -
1,484		 -
0		 -
1,484
1975 -
0		 -
0		 -
0		 -
0		 -
0		 -
0		 -
1,490		 -
0		 -
1,490
1976 -
0		 -
0		 -
0		 -
0		 -
0		 -
0		 -
1,499		 -
0		 -
1,499
1977 -
0		 -
0		 -
0		 -
0		 -
0		 -
0		 -
1,530		 -
0		 -
1,530
1978 -
0		 -
0		 -
0		 -
0		 -
0		 -
0		 -
1,532		 -
0		 -
1,532
1980 -
0		 -
0		 -
0		 -
0		 -
0		 -
0		 -
1,468		 -
0		 -
1,468
1982 -
0		 -
0		 -
0		 -
0		 -
0		 -
0		 -
1,860		 -
0		 -
1,860
1983 -
0		 -
0		 -
0		 -
0		 -
0		 -
0		 -
1,599		 -
0		 -
1,599
1984 -
0		 -
0		 -
0		 -
0		 -
0		 -
0		 -
1,473		 -
0		 -
1,473
1985 -
0		 -
0		 -
0		 -
0		 -
0		 -
0		 -
1,534		 -
0		 -
1,534
1986 -
0		 -
0		 -
0		 -
0		 -
0		 -
0		 -
1,470		 -
0		 -
1,470
1987 -
0		 -
0		 -
0		 -
0		 -
0		 -
0		 -
1,819		 -
0		 -
1,819
1988 -
0		 -
0		 -
0		 -
0		 -
0		 -
0		 -
1,481		 -
0		 -
1,481
1989 -
0		 -
0		 -
0		 -
0		 -
0		 -
0		 -
1,537		 -
0		 -
1,537
1990 -
0		 -
0		 -
0		 -
0		 -
0		 -
0		 -
1,372		 -
0		 -
1,372
1991 -
0		 -
0		 -
0		 -
0		 -
0		 -
0		 -
1,517		 -
0		 -
1,517
1993 -
0		 -
0		 -
0		 -
0		 -
0		 -
0		 -
1,606		 -
0		 -
1,606
1994 -
0		 -
0		 -
0		 -
0		 -
0		 -
0		 -
2,992		 -
0		 -
2,992
1996 -
0		 -
0		 -
0		 -
0		 -
0		 -
0		 -
2,904		 -
0		 -
2,904
1998 -
0		 -
0		 -
0		 -
0		 -
0		 -
0		 -
2,832		 -
0		 -
2,832
2000 -
0		 -
0		 -
0		 -
0		 -
0		 -
0		 -
2,817		 -
0		 -
2,817
2002 -
0		 -
0		 -
0		 -
0		 -
0		 -
0		 -
2,765		 -
0		 -
2,765
2004 -
0		 -
0		 -
0		 -
0		 -
0		 -
0		 -
2,812		 -
0		 -
2,812
2006 -
0		 -
0		 -
0		 -
0		 -
0		 -
0		 -
4,510		 -
0		 -
4,510
2008 84.6
999		 4.4
52		 4.6
54		 3.9
46		 2.5
30		 -
111		 -
709		 -
22		 100.0
2,023
2010 -
0		 -
0		 -
0		 -
0		 -
0		 -
0		 -
2,044		 -
0		 -
2,044
2012 -
0		 -
0		 -
0		 -
0		 -
0		 -
0		 -
1,974		 -
0		 -
1,974
2014 -
0		 -
0		 -
0		 -
0		 -
0		 -
0		 -
2,538		 -
0		 -
2,538
2016 -
0		 -
0		 -
0		 -
0		 -
0		 -
0		 -
2,867		 -
0		 -
2,867
2018 -
0		 -
0		 -
0		 -
0		 -
0		 -
0		 -
2,348		 -
0		 -
2,348
2021 -
0		 -
0		 -
0		 -
0		 -
0		 -
0		 -
4,032		 -
0		 -
4,032
2022 -
0		 -
0		 -
0		 -
0		 -
0		 -
0		 -
3,544		 -
0		 -
3,544
COL TOTAL 84.6
999		 4.4
52		 4.6
54		 3.9
46		 2.5
30		 -
111		 -
71,076		 -
22		 100.0
72,390
Properties
Data type: numeric
Missing-data codes: .d,.i,.j,.m,.n,.p,.q,.r,.s,.u,.x,.y,.z
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