60 women and 60 men between the ages of 18 and 45 years (M = 30.5, SD = 9.6) were categorized by sex, age, and birth order (only child, firstborn, last-born) to assess the differences among the adult only-child, the youngest child, and the oldest child in autonomous characteristics and cohesiveness in family interaction. Analysis of the responses on a biographical data sheet, the California Psychological Inventory, and the Family Adaptability Cohesion Scales III showed that main effects for birth order and sex are significant in the process of separation-individuation and that the only child is less autonomous than the oldest child.
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References
1.
AnsbacherH. L.AnsbacherR. (Eds.) (1984) The individual psychology of Alfred Adler: A systematic presentation in selections from his writings. New York: Basic Books.
2.
BankS. P.KahnM. D. (1975) Sisterhood-brotherhood is powerful: Sibling subsystems and family therapy. Family Process, 14, 317–319.
3.
BlaneH. T.BarryH.III. (1973) Birth order and alcoholism. Quarterly Journal of Studies on Alcohol, 34, 837–852.
4.
BlosP. (1979) The adolescent passage: Developmental issues. New York: International Universities Press.
5.
BowenM. (1976) Theory and practice in psychotherapy. In GuerinP. J. (Ed.), Family therapy: Theory and practice in psychotherapy. New York: Gardner Press. Pp. 42–90.
6.
BowenM. (1978) Family therapy in clinical practice. New York: Jason Aronson.
7.
CohenJ. (1988) Statistical power analysis for the behavioral sciences. (2nd ed.) Hillsdale, NJ: Erlbaum.
8.
FeldmanG. C. (1981) Three's company: Family therapy with only child families. Journal of Marital and Family Therapy, 7, 43–46.
9.
ForerL. K. (1977) Use of birth order information in psychotherapy. Journal of Individual Psychology, 33, 105–118.
10.
GoughH. G. (1987) California Psychological Inventory. Palo Alto, CA: Consulting Psychologists Press.
11.
GrotevantH. D.CooperC. R. (1986) Individuation in family relationship. Human Development, 29, 82–100.
12.
HaleyJ. (1980) Leaving home: The therapy of disturbed young people. New York: McGraw-Hill.
13.
JosselsonR. L. (1980) Ego development in adolescence. In AdelsonJ. (Ed.), Handbook of adolescent psychology. New York: Wiley. Pp. 188–210.
14.
MahlerM. (1968) On human symbiosis and the vicissitudes of individuation. Vol. 1. Infantile psychosis. New York: International Universities Press.
15.
MahlerM.PineF.BergmanA. (1975) The psychological birth of the human infant. New York: Basic Books.
16.
MastersonJ. (1976) Psychotherapy of the borderline adult: A developmental approach. New York: Brunner/Mazel.
17.
MinuchinS. (1974) Families and family therapy. Cambridge, MA: Harvard Univer. Press.
18.
NeubauerP. B. (1982) Rivalry, envy and jealousy. In SolnitA. J. (Ed.), Psychoanalytic study of the child. Vol. 37. New Haven, CT: Yale Univer. Press. Pp. 121–142.
19.
NeubauerP. B. (1983) The importance of the sibling experience. In SolnitA. J. (Ed.), Psychoanalytic study of the child. Vol. 38. New Haven, CT: Yale Univer. Press. Pp. 325–336.
20.
OlsonD.PortnerJ.LaveeY. (1985) FACES III. St. Paul, MN: Family Social Science.
21.
RosnowR. L.RosenthalR. (1988) Focused tests of significance and effect size estimates in counseling psychology. Journal of Counseling Psychology, 59, 217–224.
22.
SabatelliR. M.MazorA. (1985) Differentiation, individuation and identity formation: The integration of family system and individual developmental perspectives. Adolescence, 20, 619–633.
23.
StierlinH.LeviL.SavardR. (1971) Parental perceptions of separating children. Family Process, 10, 411–427.
24.
TaylorL.KoganK. (1973) Effects of birth of a sibling on mother-child interactions. Child Psychiatry and Human Development, 4(1), 53–58.
