Select a dataset

S.No
ICPR STATE CODE
V1
COUNTY NAME
V2
IDENTIFICATION NUMBER
V3
CONG DIST NUMBER, 1974
V4
STATE OFF SUB-CODE, 1974
V5
974 2 G GOV 0100 VOTE
V6
974 2 G GOV 0112 VOTE
V7
974 2 G GOV 0200 VOTE
V8
974 2 G GOV 0310 VOTE
V9
974 2 G GOV 0328 VOTE
V10
974 2 G GOV 0361 VOTE
V11
974 2 G GOV 0380 VOTE
V12
974 2 G GOV 0402 VOTE
V13
974 2 G GOV 0501 VOTE
V14
974 2 G GOV 0505 VOTE
V15
974 2 G GOV 0543 VOTE
V16
974 2 G GOV 0570 VOTE
V17
974 2 G GOV 0646 VOTE
V18
974 2 G GOV 0718 VOTE
V19
974 2 G GOV 0787 VOTE
V20
974 2 G GOV 0894 VOTE
V21
974 2 G GOV 1404 VOTE
V22
974 2 G GOV 1411 VOTE
V23
974 2 G GOV 1447 VOTE
V24
974 2 G GOV 1461 VOTE
V25
11FAIRFIELD1054215084701157125140000000000000046170
21HARTFORD3052219376601059887840000000000000039760
31LITCHFIELD506235411025562110000000000000007370
41MIDDLESEX705322753002156984000000000000006970
51NEW HAVEN9053216101301033405580000000000000055280
61NEW LONDON1102236385036656106000000000000005060
71TOLLAND1305322105501655785000000000000004070
81WINDHAM150221748301478550000000000000001920
92ANDROSCOGGIN102NA1055802714046000000000000000
102AROOSTOOK302NA1051406897091000000000000000
112CUMBERLAND501NA281180162700275000000000000000
122FRANKLIN702NA287102093034000000000000000
132HANCOCK902NA420004742050000000000000000
142KENNEBEC1101NA13750081830102000000000000000
152KNOX1301NA318803554042000000000000000
162LINCOLN1501NA255903033039000000000000000
172OXFORD1702NA572303578061000000000000000
182PENOBSCOT1902NA14803083990115000000000000000
192PISCATAQUIS2102NA240001689024000000000000000
202SAGADAHOC2301NA301501721019000000000000000
212SOMERSET2502NA459103479043000000000000000
222WALDO2701NA253002354023000000000000000
232WASHINGTON2902NA388203044062000000000000000
242YORK3101NA195170124260288000000000000000
253BARNSTABLE10122193620265391121000000003650000000
Frequency distribution for variable: BS1_4
Count % Valid % Valid Cum. % Total % Total Cum.
(0) None 1234 1234 1234 1234 1234
(1) Little 1234 1234 1234 1234 1234
(2) Moderate 1234 1234 1234 1234 1234
(3) Quite 1234 1234 1234 1234 1234
(4) Extreme 1234 1234 1234 1234 1234
(\) Did not respond 1234 1234 1234 1234 1234
Total 1234 1234 1234 1234 1234
Control :
DOBM
RT314 JANUARY
(01) 		FEBRUARY
(02) 		MARCH
(03) 		APRIL
(04) 		MAY
(05) 		JUNE
(06) 		JULY
(07) 		AUGUST
(08) 		SEPTEMBER
(09) 		OCTOBER
(10) 		NOVEMBER
(11) 		DECEMBER
(12) 		Row Total
NOT AT ALL (1) N=17 24 25 21 19 16 26 16 28 25 25 31 273
Row % 6.23% 8.79% 9.16% 7.69% 6.96% 5.86% 9.52% 5.86% 10.26% 9.16% 9.16% 11.36% 100%
Column % 47.22% 53.33% 53.19% 50.00% 44.19% 40.00% 49.06% 37.21% 54.90% 46.30% 46.30% 60.78% 48.84%
Total % 3.04% 4.29% 4.47% 3.76% 3.40% 2.86% 4.65% 2.86% 5.01% 4.47% 4.47% 5.55% 48.84%
ABOUT ONCE A YEAR (2) N=3 7 8 6 9 4 8 11 3 7 8 3 77
3.90% 9.09% 10.39% 7.79% 11.69% 5.19% 10.39% 14.29% 3.90% 9.09% 10.39% 3.90% 100%
8.33% 15.56% 17.02% 14.29% 20.93% 10.00% 15.09% 25.58% 5.88% 12.96% 14.81% 5.88% 13.77%
0.54% 1.25% 1.43% 1.07% 1.61% 0.72% 1.43% 1.97% 0.54% 1.25% 1.43% 0.54% 13.77%
SEVERAL TIMES A YEAR (3) N=3 8 8 5 7 7 7 6 5 11 8 5 80
3.75% 10.00% 10.00% 6.25% 8.75% 8.75% 8.75% 7.50% 6.25% 13.75% 10.00% 6.25% 100%
8.33% 17.78% 17.02% 11.90% 16.28% 17.50% 13.21% 13.95% 9.80% 20.37% 14.81% 9.80% 14.31%
0.54% 1.43% 1.43% 0.89% 1.25% 1.25% 1.25% 1.07% 0.89% 1.97% 1.43% 0.89% 14.31%
ONE TO THREE TIMES A MONTH (4) N=5 1 0 3 2 4 5 3 0 2 2 0 27
18.52% 3.70% 0.00% 11.11% 7.41% 14.81% 18.52% 11.11% 0.00% 7.41% 7.41% 0.00% 100%
13.89% 2.22% 0.00% 7.14% 4.65% 10.00% 9.43% 6.98% 0.00% 3.70% 3.70% 0.00% 4.83%
0.89% 0.18% 0.00% 0.54% 0.36% 0.72% 0.89% 0.54% 0.00% 0.36% 0.36% 0.00% 4.83%
ABOUT ONCE A WEEK (5) N=1 0 0 0 0 3 0 1 2 0 1 3 11
9.09% 0.00% 0.00% 0.00% 0.00% 27.27% 0.00% 9.09% 18.18% 0.00% 9.09% 27.27% 100%
2.78% 0.00% 0.00% 0.00% 0.00% 7.50% 0.00% 2.33% 3.92% 0.00% 1.85% 5.88% 1.97%
0.18% 0.00% 0.00% 0.00% 0.00% 0.54% 0.00% 0.18% 0.36% 0.00% 0.18% 0.54% 1.97%
MORE THAN ONCE A WEEK (6) N=1 0 1 2 2 2 1 1 1 0 2 0 13
7.69% 0.00% 7.69% 15.38% 15.38% 15.38% 7.69% 7.69% 7.69% 0.00% 15.38% 0.00% 100%
2.78% 0.00% 2.13% 4.76% 4.65% 5.00% 1.89% 2.33% 1.96% 0.00% 3.70% 0.00% 2.33%
0.18% 0.00% 0.18% 0.36% 0.36% 0.36% 0.18% 0.18% 0.18% 0.00% 0.36% 0.00% 2.33%
R SAYS FORMER SPOUSES/PARTNERS PARENTS ARE DECEASED (9) N=6 5 5 5 4 4 6 5 12 9 8 9 78
7.69% 6.41% 6.41% 6.41% 5.13% 5.13% 7.69% 6.41% 15.38% 11.54% 10.26% 11.54% 100%
16.67% 11.11% 10.64% 11.90% 9.30% 10.00% 11.32% 11.63% 23.53% 16.67% 14.81% 17.65% 13.95%
1.07% 0.89% 0.89% 0.89% 0.72% 0.72% 1.07% 0.89% 2.15% 1.61% 1.43% 1.61% 13.95%
Col Total  N=36 45 47 42 43 40 53 43 51 54 54 51 559
6.44% 8.05% 8.41% 7.51% 7.69% 7.16% 9.48% 7.69% 9.12% 9.66% 9.66% 9.12% 100%
100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100%
6.44% 8.05% 8.41% 7.51% 7.69% 7.16% 9.48% 7.69% 9.12% 9.66% 9.66% 9.12% 100%

ICPSR 21600
https://doi.org/10.3886/ICPSR21600.v25

Scope

Date of collection
1994-01 -- 1995-12 (Wave I)1996-04 -- 1996-09 (Wave II)2001-04 -- 2002-04 (Wave III)2007-04 -- 2009-01 (Wave IV)2016-03 -- 2018-11 (Wave V)
Smallest geographic unit
Data collection notes

Wave V data files were minimally processed by ICPSR. For value labeling, missing value designation, and question text (where applicable), please see the available P.I. Codebook/Questionnaires. The study-level documentation (Data Guide, User Guide) does not include Wave V datasets.

Documentation for Waves prior to Wave V may use an older version of the study title.

Users should be aware that version history notes dated prior to 2015-11-09 do not apply to the current organization of the datasets.

Please note that dates present in the Summary and Time Period fields are taken from the Add Health Study Design page. The Date of Collection field represents the range of interview dates present in the data files for each wave.

Wave I and Wave II field work was conducted by the National Opinion Research Center at the University of Chicago.

Wave III, Wave IV, and Wave V field work was conducted by the Research Triangle Institute.

For the most updated list of related publications, please see the Add Health Publications Web site.

Additional information on the National Longitudinal Study of Adolescent to Adult Health (Add Health) series can be found on the Add Health Web site.

Methodology

Response rate

Response rates for each wave were as follows:

  • Wave I: 79 percent
  • Wave II: 88.6 percent
  • Wave III: 77.4 percent
  • Wave IV: 80.3 percent
  • Wave V: 71.8 percent

Mode of data collection
  • audio computer-assisted self interview (ACASI)
  • computer-assisted personal interview (CAPI)
  • computer-assisted self interview (CASI)
  • face-to-face interview
  • mixed mode
  • paper and pencil interview (PAPI)
  • telephone interview
Sample

  • Wave I: The Stage 1 in-school sample was a stratified, random sample of all high schools in the United States. A school was eligible for the sample if it included an 11th grade and had a minimum enrollment of 30 students. A feeder school -- a school that sent graduates to the high school and that included a 7th grade -- was also recruited from the community. The in-school questionnaire was administered to more than 90,000 students in grades 7 through 12. The Stage 2 in-home sample of 27,000 adolescents consisted of a core sample from each community, plus selected special over samples. Eligibility for over samples was determined by an adolescent's responses on the in-school questionnaire. Adolescents could qualify for more than one sample.
  • Wave II: The Wave II in-home interview surveyed almost 15,000 of the same students one year after Wave I.
  • Wave III: The in-home Wave III sample consists of over 15,000 Wave I respondents who could be located and re-interviewed six years later.
  • Wave IV: All original Wave I in-home respondents were eligible for in-home interviews at Wave IV. At Wave IV, the Add Health sample was dispersed across the nation with respondents living in all 50 states. Administrators were able to locate 92.5% of the Wave IV sample and interviewed 80.3% of eligible sample members.
  • Wave V: All Wave I respondents who were still living were eligible at Wave V, yielding a pool of 19,828 persons. This pool was split into three stratified random samples for the purposes of survey design testing.

For additional information on sampling, including detailed information on special oversamples, please see the Add Health Study Design page.

Universe
Adolescents in grades 7 through 12 during the 1994-1995 school year. Respondents were geographically located in the United States.
Units of observation
Data & documentation
resources & training
funder info
Help & Contact