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child development in context

 

Michael E. Lamb, PhD, Head, Section on Social and Emotional Development

Yael Orbach, PhD, Staff Scientist

Margaret-Ellen Pipe, PhD, Staff Scientist

Craig Abbott, PhD, Statistician

Ann-Christin Cederborg, PhD, Visiting Researchera

Hillary N. Fouts, PhD, Postdoctoral Fellow

Eva V. Guterman, PhD, Postdoctoral Fellow

David La Rooy, PhD, Postdoctoral Fellow

Veronica Chavez, BA, Predoctoral Fellow

Renee DeBoard, BA, Predoctoral Fellow

Katie Hrapczynski, BS, Predoctoral Fellow

Sarah Jensen, BA, Predoctoral Fellow

Monique Mendoza, BA, Predoctoral Fellow

Casey Sullivan, BA, Predoctoral Fellow

 

Our research is designed to explore how developmental processes are influenced by their social and physical context. To elucidate these influences and processes, researchers must examine the interface between endogenous and exogenous processes, children’s conceptions and perceptions of their experiences, and the ways in which knowledge of developmental processes can inform social policies and practices.

Children’s accounts of experienced events

One major program of research involves the development and assessment of techniques for enhancing the informativeness of child witnesses and for evaluating the credibility of their accounts. Several studies in our research program focus on the relationship between interviewer style and the quality of information provided by young children. The work has confirmed that open-ended prompts of recall memory are likely to elicit longer, more detailed, and more accurate responses than focused questions in both analog and forensic contexts. Our findings have strengthened the generalizability to the forensic context of the results obtained in many laboratory studies.

In research conducted in collaboration with investigative agencies in the United States, United Kingdom, and Israel, we have shown that interviewers can increase the length and richness of children’s accounts regardless of the children’s ages by following the NICHD Investigative Interview Protocol, which we developed. The protocol is designed to probe recall memory and reduce the reliance on more focused questions, which are more likely to elicit erroneous information. Use of the protocol dramatically increases the amount of information retrieved from four- to 13-year-old alleged victims. Recent analyses show that such is the case even when children are interviewed about events that occurred months earlier. Although preschoolers are often deemed incapable of responding to open-ended prompts, our research shows that similar proportions of details can be elicited by using open-ended prompts with children as young as four years and as old as 13 years. Nonetheless, we observed important age differences in the types of information that children provide. For example, ongoing analyses of interviews show steady increases with age in the amount and quality of information children provide about the timing of events. The research provides unique insights into children’s developing appreciation of temporal information about experienced events and extends laboratory research both theoretically and practically. A study exploring references to temporal attributes made in the context of court interviews is currently under way in collaboration with Friedman and Lyon.

Adaptations of the NICHD Investigative Interview Protocol for use with young witnesses and alleged perpetrators are currently used in the field. Our research has shown that young witnesses recall as much information in total, as well as in response to open-ended prompts, as do alleged victims. Alleged suspects tend to be more reluctant, but those who agree to talk provide as much information about their experiences and are as responsive to free-recall prompts as age mates who are alleged victims. Comparisons of victims’ and offenders’ accounts of the same incidents of abuse are currently under way. Another field experiment has shown that the introduction of gender-neutral anatomical drawings in the context of protocol-guided interviews also helps children provide substantial numbers of additional details about alleged incidents of abuse. The gender-neutral drawings were especially productive when shown to young (four- to seven-year-old) children. Given that we do not know whether the reported information is accurate, we have initiated research, in collaboration with Lancaster University, that uses the NICHD protocol and gender-neutral drawings to assess the accuracy of reports provided by young children about both staged experienced events and fictitious events. This first laboratory test of the protocol will help determine the most effective means of eliciting accurate information from children.

In other ongoing field research, we are exploring the effects of different types of interviewers’ suggestive prompts and of repeated interviews on children’s responses as well as the extent to which use of the protocol facilitates decisions and interventions designed to prosecute offenders and protect children. Given, however, that many children do not disclose suspected abuse when interviewed, we are also exploring case characteristics and the dynamics of interviews both with children who do make allegations and those who do not or make allegations only reluctantly. Our aim is to identify the factors that lead children not to report abuse that they experienced. The studies should also help us to develop procedures that can be implemented nonsuggestively in forensic settings in order to enhance the sensitivity and specificity of conclusions drawn from investigative interviews. A book is currently in preparation based on the proceedings an the international conference on delayed and nondisclosure of child sexual abuse, convened in August 2003 by staff of this laboratory and collaborators.

Aldridge J, Lamb ME, Sternberg KJ, Orbach Y, Esplin PW, Bowler L. Using a human figure drawing to elicit information from alleged victims of child sexual abuse. J Consulting Clin Psychol 2004;72:304-316.

Lamb ME, Sternberg KJ, Orbach Y, Esplin PW, Stewart H, Mitchell S. Age differences in young children’s responses to open-ended invitations in the course of forensic interviews. J Consulting Clin Psychol 2003;71:926-934.

Lamb ME, Sternberg KJ, Orbach Y, Hershkowitz I, Horowitz D. Differences between accounts provided by witnesses and alleged victims of child sexual abuse. Child Abuse Negl 2003;27:1019-1031.

Pipe M-E, Lamb ME, Orbach Y, Esplin PW. Recent research on children’s testimony about experienced and witnessed events. Dev Rev, in press.

Thierry KL, Lamb ME, Orbach Y. Awareness of the origin of knowledge predicts child witnesses’ recall of alleged sexual and physical abuse. Appl Cognit Psychol 2004;17:953-967.

Effects of domestic violence

Another program of research focuses on the effects of child and spouse abuse on the development of children and adolescents and on factors that moderate or mediate these effects. The program involves three lines of research: a longitudinal study of domestic violence, a mega-analysis of a combined set of data from 12 independent studies, and the development of the Child Maltreatment Log (CML), a computerized data collection instrument. The Israeli Longitudinal Domestic Violence Study uses a prospective longitudinal design to investigate the early and later effects of being physically abused and/or witnessing physical abuse between parents on children’s adjustment at different developmental stages. Independent interviews with mothers, fathers, and children revealed widely divergent accounts of the families’ histories of violence, and the differences complicate efforts to identify links between experiences and outcomes. In both middle childhood and adolescence, however, family violence appears to affect the offsprings’ views of their parents. Whereas physical abuse between parents has little apparent effect on the children’s attachments to their parents, children and adolescents feel less closely attached to the parents who had abused them. Effects are greater on adolescents’ reports of attachment to their mothers than to their fathers, irrespective of perpetrator. The relationship between concurrent behavior problems and form of abuse varies by informant and study phase, although it is strongest when based on children’s reports. Physically abused children report more behavior problems and depression than nonabused children or those who witness physical abuse between parents. Abuse in adolescence did not have as consistent an effect on children’s behavior problems as did abuse in middle childhood, with little evidence that early abuse had persistent effects in the absence of continued abuse.

Preliminary results of the mega-analysis have shown that the odds of being at risk for behavioral and emotional problems were consistently higher for children who were abused witnesses than for children from nonviolent families. Children’s age but not sex, however, moderates the effects of being a victim or witness of abuse. We have completed a first stage of development, pilot testing, and modification of the CML. Ongoing testing of the CML’s function of generating database reports is currently under way. In other ongoing research, we are investigating factors that protect children and those that make children more susceptible to adverse effects of domestic violence and examining the possible mediating effects of the frequency and severity of family violence on children’s adjustment.

Dawud-Noursi S, Sternberg KJ, Lamb ME, Greenbaum C. Domestic violence: the reports of multiple informants about children’s behavior problems. Hevra Virivaha [Hebrew],  in press.

Sternberg KJ, Knutson JF, Lamb ME, Baradaran LP, Nolan C, Flanzer S. The Child Maltreatment Log: a computer-based program for describing research samples. Child Maltreat 2004;9:30-48.

Sternberg KJ, Lamb ME, Guterman E, Abbott C, Noursi SD. Adolescents’ perceptions of attachment to their mothers and fathers in families with histories of domestic violence. Child Abuse Negl, in press.

Adaptation to nonparental child care

One of our research programs has involved short- and long-term longitudinal studies in Göteborg (Sweden) and Berlin (Germany) of children with distinct child care experiences. The longitudinal study in Sweden was initially designed to elucidate the effects of early care arrangements on the development of 145 children recruited in 1982 at an average age of 16 months. Initial analyses indicated that the quality of home care and the quality of alternative care had substantial effects on the children’s verbal abilities, social skills, and personal maturity. The effects diminished as the children moved into the formal educational system and their individual personalities came to affect the adjustment to school. Preliminary analyses revealed no apparent effects of contrasting early care patterns on educational histories and the psychological status of these children at 15 years of age.

Longitudinal analyses revealed substantial stability over time in the children’s personality styles. Of the “big five” personality factors, conscientiousness was coherent from toddlerhood, whereas the internal reliabilities of extraversion, agreeableness, neuroticism, and openness to experience increased over time. Scores on most of these factors were fairly stable over time, but children became less extraverted, more agreeable, and more conscientious with age. Although individual differences were stable, the children also became more ego-controlled over time. Boys’ levels of ego resiliency were more stable over time than girls’; boys became less resilient from middle childhood into mid-adolescence, whereas girls became more ego-resilient as they entered adolescence. Participants in the study were reinterviewed in 2003–2004, when they averaged 21 years of age.

In the Berlin longitudinal study, we have been measuring the psychophysiological, socioemotional, and behavioral tendencies of infants in order to assess the effects of earlier individual differences in behavioral and psychophysiological reactivity and infant-mother attachment on the adaptation to out-of-home center care. During an adaptation phase, in which mothers remained in the centers with their toddlers, secure infants had markedly lower cortisol levels than insecure infants, suggesting that they gained more protective support from the presence of their mothers. When the mothers stopped remaining with their infants, the cortisol responses of the securely attached toddlers were much more dramatic than the responses of the insecurely attached toddlers: on the initial separation days, cortisol levels rose over the first 60 minutes after arrival to levels twice as high as at home. Secure toddlers also fussed or cried upon separation more than insecurely attached toddlers. Cortisol and behavioral markers of distress were correlated in securely attached but not in insecurely attached toddlers. The security of attachment changed in many cases following the onset of child care, but attachments were more likely to become or remain secure when mothers remained longer in the child care facilities with their toddlers. Close examination of individual differences in cardiac reactivity and of the formation of relationships with care providers is now under way.

Ahnert L, Gunnar MR, Lamb ME, Barthel M. Transition to child care: associations with infant-mother attachment, infant negative emotion and cortisol elevations. Child Dev 2004;75:639-650.

Ahnert L, Lamb ME. Child care and its impact on young children (2-5). In: Encyclopedia on Early Childhood Development. Centre of Excellence for Early Childhood Development Web site, [online] http://www.excellence-earlychildhood.ca/, 2004.

Ahnert L, Lamb ME. Shared care: establishing a balance between home and child care settings. Child Dev 2003;74:1044-1049.

Lamb ME. Day care: measuring quality of care. In: Fisher CB, Lerner RM, eds. Applied Developmental Science: an Encyclopedia of Research, Policies, and Programs. Thousand Oaks, CA: Sage, 2004.

Lamb ME, Ahnert L. Institutionelle Betreuungskontexte und ihre entwicklungspsychologische Relevanz für Kleinkinder [Institutional care contexts and their developmental relevance to young children]. In: Keller H, ed. Handbuch der Kleinkindforschung, third edition. Bern: Huber, 2003;525-564.

Subcultural variations in the nature of children’s early experiences

Another project has focused on the description of cultural differences in early interaction. In each case, we conducted extended observations to ensure the reliable measurement of individual differences. We are conducting comparable day-long observations of parents and infants in Quebec, Germany, the Central African Republic, Costa Rica, and Colombia, as well as in African American, Caribbean-American, and Euro-American families in the United States, to explore further the effects of culture and context on early interactions.

Extended observations of two- to five-year-old Bofi infants whose families either lived in villages or pursued a nomadic hunting and gathering lifestyle revealed that, contrary to widespread beliefs, weaning was seldom a time of parent-offspring conflict. In both groups, children initiated weaning as they began to eat a variety of foodstuffs, although villagers were more likely to terminate breastfeeding at a predetermined time, whereas foragers let the children set the pace. Weaning was usually associated with pregnancy, and the children’s reactions varied depending on maternal sensitivity and the availability of additional care providers.

Fouts HN. Central African families: a comparison of Bofi farmer and forager families. In: Roopnarine JL, Gielen UP, eds. Families in Global Perspective. Boston: Allyn & Bacon, 2005, in press.

Fouts HN. Social and emotional contexts of weaning among farmers and foragers. Ethnology 2004;43:65-81.

Fouts HN. Social contexts of weaning: the importance of cross-cultural studies. In: Gielen UP, Roopnarine JL, eds. Childhood and Adolescence in Cross-Cultural Perspective. Westport, CT: Greenwood Publishing, 2004;133-148.

Fouts HN, Lamb ME. Weanling emotional patterns among the Bofi foragers of Central Africa: the role of maternal availability and sensitivity. In: Hewlett BS, Lamb ME, eds. Hunter-Gatherer Childhoods. Hawthorne, NY: Aldine, 2005, in press.

Fouts HN, Lamb ME, Hewlett BS. Infant crying in hunter-gatherer cultures. Behav Brain Sci, in press.

Subcultural variations in parental and filial perceptions and beliefs

We have been investigating ways in which variations among rearing environments (especially as indexed by parental beliefs, values, and practices) affect children’s development. In one line of research, we are longitudinally assessing gender differences in the self-perceptions of two cohorts of seventh- to 12th-graders so that we can explore the antecedents and correlates of different styles of self-perception in adolescence. Rating themselves in 11 different roles in a self-perception battery, girls perceived themselves as more affiliative and less negatively affiliative in many roles than boys, but gender differences in assertion were not reliable, and girls’ assertiveness did not decline over time. The results contrast with popular claims regarding girls’ “loss of voice” in adolescence. Gender differences were context-specific and more pronounced in ratings of Myself as a boy/girl and Myself with a close same-sex peer. To explore antecedents of these gender differences further, a group of Swedish 15-year-olds whose development has been documented systematically since infancy completed portions of the self-perception battery. Analyses of the data are currently under way, but preliminary analyses suggest few reliable correlates of individual differences in the sample.

Day RD, Lamb ME, eds. Conceptualizing and Measuring Father Involvement. Mahwah, NJ: Erlbaum, 2004.

Lamb ME. Developmentally appropriate parenting plans after divorce. In: Fisher CB, Lerner RM, eds. Applied Developmental Science: an Encyclopedia of Research, Policies, and Programs. Thousand Oaks, CA: Sage, 2004.

Lamb ME, ed. The Role of the Father in Child Development (fourth edition). Hoboken, NJ: John Wiley & Sons, 2003.

Lamb ME, Chuang SS, Hwang CP. Internal reliability, temporal stability, and correlates of individual differences in paternal involvement: a 15-year longitudinal study in Sweden. In: Day RD, Lamb ME, eds. Conceptualizing and Measuring Father Involvement. Mahwah, NJ: Erlbaum, 2004;129-148.

Lewis C, Lamb ME. Fathers’ influences on children’s development: the evidence from two-parent families. Eur J Psychol Educ 2003;18:211-228.

aLinköpings Universitet,  Sweden

COLLABORATORS

Lieselotte Ahnert, PhD, Freie Universität, Berlin, Germany

Jan Aldridge, PhD, University of Leeds, UK

Deirdre Brown, PhD, Lancaster University, Bailrigg, UK

Natasha Cabrera, PhD, University of Maryland, College Park, MD

Susan S. Chuang, PhD, Syracuse University, Syracuse, NY

Mireille Cyr, PhD, University of Montreal, Canada

Phillip W. Esplin, EdD, Private Practice, Phoenix, AZ

William J. Friedman, PhD, Oberlin College, Oberlin, OH

Irit Hershkowitz, PhD, University of Haifa, Israel

Barry S. Hewlett, PhD, Washington State University, Vancouver, WA

Dvora Horowitz, PhD, Ministry of Labor and Social Affairs, Jerusalem, Israel

C. Philip Hwang, PhD, Göteborgs Universitet, Sweden

John Knutson, PhD, University of Iowa, Iowa City, IA

Charlie Lewis, PhD, Lancaster University, Bailrigg, UK

Thomas D. Lyon, JD, PhD, University of Southern California, Los Angeles, CA

Susanne Mitchell, MSW, Salt Lake Children’s Justice Center, Salt Lake City, UT

Stephen W. Porges, PhD, University of Illinois, Chicago, IL

Kim P. Roberts, PhD, Wilfrid Laurier University, Waterloo, Canada

Jaipaul L. Roopnarine, PhD, Syracuse University, Syracuse, NY

Jacqueline Shannon, PhD, The Steinhardt School of Education, New York University, New York, NY

Heather L. Stewart, MA, Salt Lake Children’s Justice Center, Salt Lake City, UT

Catherine Tamis-Lemonda, PhD, The Steinhardt School of Education, New York University, New York, NY

Karen L. Thierry, PhD, Rutgers University, Camden, NJ

Anne Graffam Walker, PhD, Private Practice, Falls Church, VA

Amye Warren, PhD, University of Tennessee at Chattanooga, Chattanooga, TN

For further information, contact lambm@mail.nih.gov