Age-Related Differences in Smiling and Personality in Down Syndrome

Achenbach, T. M. (1991). Manual for the Child Behavior Checklist and the Revised Child Behavior Profile. (2nd ed.). Burlington: University of Vermont. Agresti, A., and Finlay, B. (1997). Statistical Methods for the Social Sciences. Prentice Hall, Saddle River. Baker, B. L., Blacher, J., Crnic, K. A., and Edelbrock, C. (2002). Behavior problems and parenting stress in families of three-year-old children with and without developmental delays. Am. J. Ment. Retard. 107: 433–444. Berger, J., and Cunningham, C. C. (1986). Aspects of early social smiling by infants with Down’s syndrome. Child: Care, Health Dev. 12: 13–24. Booth, C. L., Rose-Krasnor, L., McKinnon, J., and Rubin, K. H. (1994). Predicting social adjustment in middle childhood: The role of pre-school attachment security and maternal style. Soc. Dev. 3: 189–204. Borthwick-Duffy, S. A., Lane, K. L., and Widaman, K. F. (1997). Measuring problem behaviors in children with mental retardation: Dimensions and predictors. Res. Dev. Disabil. 18: 415–433. Buckhalt, J. A., Rutherford, R. B., and Goldberg, K. E. (1978). Verbal and nonverbal interaction of mothers with their Down’s syndrome and nonretarded infants. Am. J. Ment. Defic. 82: 337–343. Cicchetti, D. V. (1994). Guidelines, criteria, and rules of thumb for evaluating normed and standardized instruments in psychology. Psychol. Assess. 6: 284–290. Cicchetti, D., and Sroufe, L. A. (1976). The relationship between affective and cognitive development in Down’s syndrome infants. Child Dev. 47: 920–929. Dekker, M. C., Koot, H. M., van der Ende, J., and Verhulst, F. C. (2002). Emotional and behavioral problems in children and adolescents with and without intellectual disability. J. Child Psychol. Psychiatr. Allied Disciplines 43: 1087–1098. Denham, S. A. (1993). Maternal emotional responsiveness and toddlers’ social-emotional competence. J.Child Psychol. Psychiatr. Allied Disciplines 34: 715–728. Dykens, E. M., and Kasari, C. (1997). Maladaptive behavior in children with Prader-Willi syndrome, Down syndrome, and nonspecific mental retardation. American Journal on Mental Retardation 102: 228–237. Dykens, E., Shah, B., Beck, T., and King, B. H. (2002). Maladaptive behavior in children and adolescents with Down’s syndrome. J. Intellect. Disabi. Res. 46: 484–492. Ekman, P., and Friesen, W. (1978). Facial Action Coding System. Consulting Psychology Press, Palo Alto, CA. Emde, R. N., and Brown, C. (1978). Adaptation after birth of a Down’s syndrome infant. J. Am. Acad. Child Psychiatr. 17: 299–323. Engler, M. (1949). Mongolism. John Wright & Sons, Bristol. Fidler, D. J., Hodapp, R. M., and Dykens, E. M. (2000). Stress in families of young children with Down syndrome, Williams syndrome, and Smith-Magenis syndrome. Early Educ. Dev. 11: 395–406. Freeman, S. F. N., and Kasari, C. (2002). Characteristics and qualities of the play dates of children with Down syndrome: Emerging or true friendships? Am. J. Ment. Retard. 107: 16–31. Gibbs, M. V., and Thorpe, J. G. (1983). Personality stereotype of noninstitutionalized Down Syndrome children. Am. J. Ment. Deficiency 87: 601–605. Hodapp, R. M., Leckman, J. F., Dykens, E. M., and Sparrow, S. S. (1992). K-ABC profiles in children with fragile X syndrome, Down syndrome, and nonspecific mental retardation. Am. J. Ment. Retard. 97: 39–46. Hodapp, R. M., Ricci, L., Ly, T. M., and Fidler, D. J. (2003). The effects of the child with Down syndrome on maternal stress. Br. J. Dev. Psychol. 21: 137–151. Jones, S. S., and Raag, T. (1989). Smile production in older infants: The importance of a social recipient for the facial signal. Child Dev. 60: 811–818. Kasari, C., and Freeman, S. F. N. (2002). Task-related social behavior in children with Down syndrome. Am. J. Ment. Retard. 106: 253–264. Kasari, C., Mundy, P., Yirmiya, N., and Sigman, M. (1990). Affect and attention in children with Down syndrome. Am. J. Ment. Retard. 95: 55–67. Kaufman, A. S., and Kaufman, N. L. (1990). Kaufman Assessment Battery for Children. American Guidance Service, Circle Pines, MN. Kneips, L. J., Walden, T. A., and Baxter, A. (1994). Affective expressions of toddlers with and without Down syndrome in a social referencing context. Am. J. Ment. Retard. 99: 301–312. Kochanska, G., and Aksan, N. (1995). Mother child mutually positive affect, the quality of child compliance to requests and prohibitions and maternal control as correlates of early internalization. Child Dev. 66: 236–254. Marzollo, J. (1999). I Spy. Scholastic Inc., New York. Messinger, D. S., Fogel, A., and Dickson, K. L. (2001). All smiles are positive, but some smiles are more positive than others. Dev. Psychol. 37: 642–653. Pitcairn, T. K., and Wishart, J. (1994). Reactions of young children with Down’s syndrome to an impossible task. Br. J. Dev. Psychol. 12: 485–489. Reiss, S., and Havercamp, S. M. (1998). Toward a comprehensive assessment of fundamental motivation: Factor structure of the Reiss profiles. Psychol. Assess. 10: 97–106. Rodgers, C. (1987). Maternal support for the Down’s syndrome stereotype: The effect of direct experience of the condition. J. Ment. Deficiency Res. 31: 217–278. Rothbart, M. K., and Hanson, M. J. (1983). A caregiver report comparison of temperamental characteristics of Down syndrome and normal infants. Dev. Psychol. 19: 766–769. Smith, M. C., and Dodson, D. G. (1996). Facial expression in adults with Down’s syndrome. J. Abnormal Psychol. 105: 602–608. Sparrow, S. S., Balla, D. A., and Cicchetti, D. V. (1984) Vineland Adaptive Behavior Scales: Interview Edition (Survey Form). American Guidance Services, Circle Pines, MN. Wishart, J. G., and Johnston, F. H. (1990). The effects of experience on attribution of a stereotyped personality to children with Down’s syndrome. J. Ment. Deficiency Res. 34: 409–420.