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Author: Ketterlinus, Robert D.

Resulting in 9 citations.

1.	Elster, Arthur B. Ketterlinus, Robert D. Lamb, Michael E.
1.	Association Between Parenthood and Problem Behavior in a National Sample of Adolescent Women Pediatrics 85,6 (June 1990): 1044-1050. Also: http://www.pediatrics.org/cgi/content/abstract/85/6/1044 Cohort(s): NLSY79 Publisher: American Academy of Pediatrics Keyword(s): Adolescent Fertility; Behavioral Problems; Deviance; Drug Use; Illegal Activities; Mothers; Parental Influences; Racial Differences; Runaways; Rural Sociology; Rural Youth; Rural/Urban Differences; School Suspension/Expulsion; Substance Use; Truancy The association between problem behaviors and parental status was studied among 1263 urban and 388 rural 15- to 17-year old teens from the NLSY. The three parental status groups appeared ordered in risk, with school-age mothers having engaged in the most problem behaviors, followed, in turn, by young adult mothers (those who had a child between 19-21 years of age) and then women who had not had a child by age 21. When individual behaviors were analyzed, school-age mothers were more likely than either young adult mothers or non-mothers to have reported school suspension, truancy, runaway, smoking marijuana and fighting. Urban women, overall, engaged in more problem behaviors than did rural women, and blacks reported fewer problem behaviors than did whites.
	Bibliography Citation Elster, Arthur B., Robert D. Ketterlinus and Michael E. Lamb. "Association Between Parenthood and Problem Behavior in a National Sample of Adolescent Women." Pediatrics 85,6 (June 1990): 1044-1050.

2.	Gardner, William Meyer, Marion Ketterlinus, Robert D.
2.	Discrete-Time Event History Analysis Using Segmented Hazards Experimental Aging Research 17,4 (1991): 251-259. Also: http://www.tandfonline.com/doi/abs/10.1080/03610739108253902 Cohort(s): NLSY79 Publisher: Beech Hill Enterprises Keyword(s): Age at First Intercourse; Event History; Research Methodology; Sexual Activity; Sexual Behavior Permission to reprint the abstract has not been received from the publisher. Event history analysis is a means of explaining variation in the timing of events in individual life histories. This article describes methods for overcoming two difficult problems likely to be encountered in applications of event history analysis to studies of aging and human development. First, in many studies the ages of occurrence of critical life events are recorded in discrete units such as years, but the probability distributions of life events are usually specified in continuous-time form. In this paper, the authors show how to estimate models for discrete-time data based on an underlying continuous-time specification. Second, the standard distributions for life events often fail to capture the complex age- dependence seen in actual data. Also shown is how to construct a model using segmented hazards, that is, a composite of different functions for different segments of time. To illustrate these points, the authors examine the age of first intercourse of 11,883 subjects from the NLSY.
	Bibliography Citation Gardner, William, Marion Meyer and Robert D. Ketterlinus. "Discrete-Time Event History Analysis Using Segmented Hazards." Experimental Aging Research 17,4 (1991): 251-259.

3.	Ketterlinus, Robert D.
3.	Non-parental Care in the First Three Years of Life and its Association with Academic and Behavior Problems in Later Childhood Presented: Lausanne, Switzerland, International Symposium on Childcare in the Early Years: Research and Future Prospects, 1990 Cohort(s): Children of the NLSY79, NLSY79 Publisher: International Symposium on Childcare Keyword(s): Behavior Problems Index (BPI); Behavioral Problems; Child Care; Child Development; Children, Academic Development; Children, Behavioral Development; General Assessment Permission to reprint the abstract has not been received from the publisher.
	Bibliography Citation Ketterlinus, Robert D. "Non-parental Care in the First Three Years of Life and its Association with Academic and Behavior Problems in Later Childhood." Presented: Lausanne, Switzerland, International Symposium on Childcare in the Early Years: Research and Future Prospects, 1990.

4.	Ketterlinus, Robert D. Henderson, Sandra H. Lamb, Michael E.
4.	Maternal Age, Sociodemographics, Prenatal Health, and Behavior: Influences on Neonatal Risk Status Journal of Adolescent Health Care 11,5 (September 1990): 423-431. Also: http://www.sciencedirect.com/science/article/pii/019700709090090O Cohort(s): Children of the NLSY79, NLSY79 Publisher: Elsevier Keyword(s): Birthweight; Child Health; Childbearing; Mothers; Mothers, Behavior; Pre-natal Care/Exposure; Pre/post Natal Health Care; Pregnancy and Pregnancy Outcomes The effects on neonatal outcomes of maternal age, socioeconomic status, and prenatal health and behavior were assessed in the NLSY. Primagravids were categorized into one of four age-at-birth groups: 13 to 15-year-olds, 16- to 18-year-olds, 19- to 21-year-olds, or 22- to 30-year-olds. Younger mothers were lighter, gained less weight during pregnancy, and sought prenatal care later in their pregnancies. Neonates of the youngest mothers on average had lower birthweights, and had shorter gestational periods. There were significant effects of maternal age, race, education, and pregnancy weight gain on the probability of giving birth to either a premature or low birthweight infant. Tentative results also implicated time of first prenatal care in prematurity.
	Bibliography Citation Ketterlinus, Robert D., Sandra H. Henderson and Michael E. Lamb. "Maternal Age, Sociodemographics, Prenatal Health, and Behavior: Influences on Neonatal Risk Status." Journal of Adolescent Health Care 11,5 (September 1990): 423-431.

5.	Ketterlinus, Robert D. Henderson, Sandra H. Lamb, Michael E.
5.	The Effect of Type of Child Care and Maternal Employment and Self-Esteem on Children's Behavioral Adjustment: Findings from the U.S. NLSY In: L'Accueil du Jeune Enfant: Politiques et Recherches dans les Différents Pays. B. Pierrehumbert, ed. Paris, France: Editions Sociales Françaises, 1992 Cohort(s): Children of the NLSY79, NLSY79 Publisher: Editions Sociales FranÃ§aises - ESF Keyword(s): Behavior Problems Index (BPI); Child Care; Children, Behavioral Development; Fathers, Absence; Home Observation for Measurement of Environment (HOME); Maternal Employment; Self-Esteem Permission to reprint the abstract has not been received from the publisher.
	Bibliography Citation Ketterlinus, Robert D., Sandra H. Henderson and Michael E. Lamb. "The Effect of Type of Child Care and Maternal Employment and Self-Esteem on Children's Behavioral Adjustment: Findings from the U.S. NLSY" In: L'Accueil du Jeune Enfant: Politiques et Recherches dans les Différents Pays.. . Pierrehumbert, ed. Paris, France: Editions Sociales Françaises, 1992

6.	Ketterlinus, Robert D. Lamb, Michael E. Henderson, Sandra H.
6.	The Effects of Maternal Age-at-Birth on Children's Cognitive Development Journal of Research on Adolescence 1,2 (1991): 173-188 Cohort(s): Children of the NLSY79, NLSY79 Publisher: Lawrence Erlbaum Associates ==> Taylor & Francis Keyword(s): Adolescent Fertility; Children; Children, Academic Development; Hispanics; Intelligence; Mothers; Mothers, Race; Peabody Individual Achievement Test (PIAT- Math); Peabody Individual Achievement Test (PIAT- Reading); Pre-natal Care/Exposure; Pre/post Natal Health Care; Racial Differences Permission to reprint the abstract has been denied by the publisher.
	Bibliography Citation Ketterlinus, Robert D., Michael E. Lamb and Sandra H. Henderson. "The Effects of Maternal Age-at-Birth on Children's Cognitive Development." Journal of Research on Adolescence 1,2 (1991): 173-188.

7.	Ketterlinus, Robert D. Lamb, Michael E. Nitz, Katherine
7.	Developmental and Ecological Sources of Stress Among Adolescent Parents (part of a symposium on: Adolescent pregnancy and parenting) Family Relations 40,4 (October 1991): 435-441. Also: http://www.jstor.org/stable/584901 Cohort(s): NLSY79 Publisher: National Council on Family Relations Keyword(s): Childbearing; Pregnancy and Pregnancy Outcomes; Stress This article provides an overview of research on the stresses associated with normative developmental transitions, the effects of psychological stress on adult parenting and parent-child interactions, and the stresses associated with the transition to parenthood during adolescence, with an emphasis on schoo/-age parents. Suggestions are provided for the design of developmentally and ecologically valid research and interventions, and for broadly based public policy addressing the unique problems associated with adolescent parenting.
	Bibliography Citation Ketterlinus, Robert D., Michael E. Lamb and Katherine Nitz. "Developmental and Ecological Sources of Stress Among Adolescent Parents (part of a symposium on: Adolescent pregnancy and parenting)." Family Relations 40,4 (October 1991): 435-441.

8.	Ketterlinus, Robert D. Nitz, Katherine
8.	Adolescent Sexual and Nonsexual Deviance: Stability Over Time and Generations Presented: Seattle, WA, Biennial Meeting of the Society for Research in Child Development, April 1991 Cohort(s): Children of the NLSY79, NLSY79 Publisher: Society for Research in Child Development (SRCD) Keyword(s): Adolescent Fertility; Behavior Problems Index (BPI); Behavioral Problems; Child Development; Children; Children, Behavioral Development; Deviance; General Assessment; Mothers; Pre-natal Care/Exposure; Pre/post Natal Health Care; Self-Perception; Sexual Activity; Sexual Behavior; Teenagers Permission to reprint the abstract has not been received from the publisher. The purpose of this study is to explore different patterns of transmission, stability, and co-occurrence of sexual and nonsexual problem behaviors among adolescents and their children. Data were obtained from the NLSY, a longitudinal survey of a national probability sample of American youth and their children. Exploratory data analysis using Partial Least-Squares techniques suggested that maternal deviance assessed in 1980 is a relatively strong predictor of 1986 child problem behaviors. Maternal self-concept, IQ, sociodemographics, and father's involvement were also associated with child outcomes suggesting that there may be different patterns of intergenerational transmission of problem behaviors among sub-groups of mother-child dyads. The determinants of continuity/discontinuity in problem behaviors across generations and stability in adolescents' problem behaviors are assessed.
	Bibliography Citation Ketterlinus, Robert D. and Katherine Nitz. "Adolescent Sexual and Nonsexual Deviance: Stability Over Time and Generations." Presented: Seattle, WA, Biennial Meeting of the Society for Research in Child Development, April 1991.

9.	Ketterlinus, Robert D. Nitz, Katherine Lamb, Michael E. Elster, Arthur B.
9.	Adolescent Non-Sexual and Sex-Related Problem Behaviors Journal of Adolescent Research 7,4 (October 1992): 431-456. Also: http://jar.sagepub.com/content/7/4/431.abstract Cohort(s): NLSY79 Publisher: Sage Publications Keyword(s): Adolescent Behavior; Adolescent Fertility; Behavior, Violent; Behavioral Problems; Drug Use; Gender Differences; Illegal Activities; Modeling, Multilevel; Religious Influences; Rural Youth; Rural/Urban Differences; Sexual Activity; Sexual Behavior; Socioeconomic Status (SES); Variables, Independent - Covariate Permission to reprint the abstract has not been received from the publisher. The association between adolescent sexual behavior and problem behaviors is assessed in a sample of male and female adolescents from the NLSY. Preliminary analyses indicate that there are linear associations between age and sexual status (virgin, sexually active but never pregnant, or parents) and involvement in four types of problem behaviors: school-related, personal violence, drug use, and stealing. Log-linear models are being tested to formally test these relationships and how they might differ among males and females, and to further assess the effects of other independent variables (e.g., religiosity, urban vs. rural, SES, etc.).
	Bibliography Citation Ketterlinus, Robert D., Katherine Nitz, Michael E. Lamb and Arthur B. Elster. "Adolescent Non-Sexual and Sex-Related Problem Behaviors." Journal of Adolescent Research 7,4 (October 1992): 431-456.

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