Workforce Age Trends and Projections1

Age and Work ◽  
2022 ◽  
pp. 25-43
Author(s):  
Jürgen Deller ◽  
Ulrich Walwei
Keyword(s):  
1971 ◽  
Vol 29 (1) ◽  
pp. 319-326 ◽  
Author(s):  
Norman A. Milgram

A longitudinal followup of 59 disadvantaged Negro children from age 3 to 8 indicated that: (1) their mean Binet IQ was relatively stable, while their Peabody IQ rose appreciably; (2) the magnitude of the correlation between earlier and later IQ scores was a function of the interval between test-retest and the age of the child on the initial comparison test; (3) ratings on test-taking behavior yielded significant sex differences and age trends; (4) ratings specific to formal test performance were significantly correlated with IQ scores of tests taken concurrent to the ratings and of tests taken one or more years later; (5) these ratings did not, however, enhance in multiple regression the correlation which obtained for predictor and criterion IQ scores alone. Findings were discussed in relation to other studies.


1978 ◽  
Vol 42 (3_suppl) ◽  
pp. 1111-1116 ◽  
Author(s):  
D. H. Saklofske ◽  
S. B. G. Eysenck

The recently published Junior Eysenck Personality Questionnaire contains scales to measure the personality dimensions of Extraversion, Neuroticism, and Psychoticism, as well as a Lie (dissimulation) factor. In view of the large volume of standardization data cross-cultural studies of personality structure are possible. The questionnaire was accordingly administered to a sample of New Zealand boys ( N = 644) and girls ( N = 672), aged from 7 to 15 yr., and the New Zealand data compared with the results reported in the manual for samples of English children. The pattern of correlations between scales was similar for both samples, the correlations tending to be quite low. The majority of items loaded on their respective factors, and these factors could be clearly identified with Eysenck's personality dimensions. Factor comparisons indicated a high degree of factor similarity for boys and girls. Internal consistency reliabilities were quite satisfactory for both sexes and closely resembled those reported in the manual. Sex and age trends were also consistent with the English results. Of some interest is the fact that New Zealand children obtained higher Psychoticism scores than did English children; they also obtained lower Lie scores.


2021 ◽  
Vol 501 ◽  
pp. 119671
Author(s):  
Rafael T. Resende ◽  
Pedro Italo T. Silva ◽  
Orzenil B. Silva-Junior ◽  
Miguel L. Menezes Freitas ◽  
Alexandre M. Sebbenn ◽  
...  

PEDIATRICS ◽  
1983 ◽  
Vol 71 (2) ◽  
pp. 153-158 ◽  
Author(s):  
Antonio U. Beltramini ◽  
Margaret E. Hertzig

Age stage-specific changes in patterns of sleep and bedtime behavior were examined in 109 normally developing preschool-aged children who were the subjects of the New York Longitudinal Study of Temperament and Development. The data were derived from information abstracted from interviews conducted with parents about the behavior of their children in daily life situations at 1, 2, 3, 4, and 5 years of age. The following age trends were found: older children were significantly more likely to exhibit a prolongation of bedtime routine, insist on sleeping with the light on, take a treasured object to bed, request parental attention after being told good night, and experience delays in falling asleep than were younger children. The frequency of occurrence of night awakening was not different at the different age levels examined, although older children were significantly more likely to experience nightmares. The fathers of older children were significantly more likely to participate in bedtime routines, and older children were also significantly more likely to share a bedroom with a sibling. No sex differences were found.


2016 ◽  
Author(s):  
Devorah Matas ◽  
Lee Koren

Steroids play multiple roles in the regulation of development, physiology, reproduction, and behavior. Measuring circulating steroids is especially challenging since concentrations are extremely labile, responding to stressors within minutes. Matrices that integrate long-term steroid levels are therefore valuable as biomarkers of baseline, as well as chronic steroid exposures. Here we report on a simple method to extract and measure accumulated testosterone from human fingernails using commercial EIA kits. Further, we demonstrate known human testosterone sex and age trends. Thus, this method is a potential tool for biomonitoring endogenous as well as exogenous steroid exposure.


2020 ◽  
Vol 69 (42) ◽  
pp. 1517-1521 ◽  
Author(s):  
Jeremy A.W. Gold ◽  
Lauren M. Rossen ◽  
Farida B. Ahmad ◽  
Paul Sutton ◽  
Zeyu Li ◽  
...  

1961 ◽  
Vol 16 (1) ◽  
pp. 173-174 ◽  
Author(s):  
Jana Pařízková

Body density was determined in 151 normal boys and girls 9–17 years old by hydrostatic weighing and simultaneous determination of residual lung volume by the nitrogen dilution method. Also, 56 obese children 9–15 years old were studied. Body composition changed characteristically in the groups of normal children. In boys, density at 9 years was 1.062 (S.E. = 0.003) and fell to 1.048 (S.E. = 0.004) at 11–13 years; it rose to 1.073 (S.E. = 0.002) at 16, indicating a relative decrease in fat content and increased development of lean body mass. In girls, values were more stable-1.041–1.042 (S.E. = 0.003–0.004) on the average, except in the year 13–14 when body density increased to 1.051 (S.E. = 0.004). After the start of clinical puberty, body density again fell to 1.038 (S.E. = 0.003) indicating increased fat content. There was significant sexual difference in body density before the beginning of prepuberal acceleration of growth and later with the start of clinical puberty. Body density for obese boys 9–12 years old was 1.010 (S.E. = 0.002) and for obese girls of the same age 1.009 (S.E. = 0.002). In 13–15-year-old obese boys, density was 1.016 (S.E. = 0.003) and for girls was 1.012 (S.E. = 0.0039); i.e. in obese children no sex or age differences in body density were found. Submitted on May 9, 1960


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