Variable Name ** 
Definition
CASENO    Participant identification number
Demographic Variables
SEX Participant gender
AGEGRPxx Participant age group based on year of birth in 7-year increments; agegrp value increases over time as participant ages.
COHORT    Participant cohort based on year of birth in 7-year increments; lower cohort values tend to drop from succeeding datasets as oldest cohorts leave SLS. Cohort value remains consistent across time for participants.
HTxx      Participant height in inches
WTxx      Participant weight in pounds
MSxx      Marital Status
CHILxx    Number of children
OCCxx     Occupation
EDUCxx    Years of education ( 1 – 20)
CHHxx     Change in homes in past five years (number of times 0 – 20)
CHJxx     Change in jobs/employment in past five year (number of times 0 – 20)
CHPxx     Number of trades/professions in past five years (0 – 10)
LFSxx     Life Satisfaction
JADJxx    Job Success
Cognitive/Personality Variables
Vxx PMA Verbal: number correct
Sxx PMA Space: number correct minus number wrong
Rxx PMA Reason: number correct
Nxx PMA Number: number correct minus number wrong
Wxx PMA Word Fluency: total number correct words
IQxx      PMA Intelligence Quotient: (Vxx + Sxx + (2 * Rxx) + (2 * Nxx) +Wxx)
QExx      PMA Education Quotient: ((2 * Vxx) + Rxx)
RESRxx    TBR Social Responsibility
MCRxx     TBR Motor Cognitive Flexibility
(mcr=capitals reversed weighted score + opposites r1 weighted score +
opposites r2 weighted score.
PPRxx     TBR Attitudinal Flexibility or Personality-Rigidity
(ppr=rigidity weighted score + preservation weighted score)
PPSxx     TBR Psychomotor Speed
(pps=capitals weighted score + opposites weighted score)
      
** where xx = year of data collection

 
SLS Demographic Variable Code
Variable
Codes
SEX (Gender) 1= male 2 = female
Cohort
     By year of birth:
1 = pre 1893
2 = 1893 – 1899
3 = 1900 – 1906
4 = 1907 – 1913
5 = 1914 – 1920
6 = 1921 – 1927
7 = 1928 – 1934
8 = 1935 – 1941
9 = 1942 – 1948
10 = 1949 – 1955
11 = 1956 – 1962
12 = 1963 – 1969
13 = 1970 - 1976
Marital Status     1 = single 2 = divorced 3 = separated 4 = widowed 5 = married
Occupation    0 = unskilled labor
1 = domestic service
2 = operative/factory worker
3 = service occupation
4 = protective services
5 = skilled crafts
6 = clerical/sales
7 = proprietor/managerial
8 = semi-professional (BA/BS)
9 = professional (graduate degree)

55 = unemployed 66 = student 77 = homemaker 88 = retired
Life Satisfaction
1 = very happy
2 = moderately happy
3 = average
4 = somewhat unhappy
5 = very unhappy
Job Satisfaction  
1 = very successful
2 = moderately successful
3 = average
4 = somewhat successful
5 = very unsuccessful

 

SLS Wave
    
1956
    
1963
    
1970
    
1977

1984

1991

1998

2005

Age Group codes based on year of birth 1, 2
    
            

	1956	1963	1970	1977	1984	1991	1998	2005
1970-1976	-	-	-	-	-	-	25	32
1963–1969	-	-	-	-	-	25	32	39
1956-1962	-	-	-	-	25	32	39	46
1949–1955	-	-	-	25	32	39	46	53
1942–1948	-	-	25	32	39	46	53	60
1935–1941	-	25	32	39	46	53	60	67
1928–1934	25	32	39	45	53	60	67	74
1921–1927	32	39	46	53	60	67	74	81
1914–1920	39	46	53	60	67	74	81	88
1907–1913	46	53	60	67	74	81	88	95
1900–1906	53	60	67	74	81	88	95	102
1893–1899	60	67	74	81	88	95	102	-
Pre – 1893	67	74	81	88	95	-	-	-

Notes:
1Age group code = midpoint of 7-year age group range; therefore, range of ages in each age group = code +/- 3 years.
2Participants less than 22 years of age were assigned to the youngest age group and cohort for that data collection year. In subsequent waves, these participants retained their original cohort and agegroup assignments although their actual year of birth would have placed them in younger groups.