This research study investigated the effectiveness of the application of child-centered play therapy procedures and skills by trained fifth grade students in play sessions with kindergarten children who had adjustment difficulties. Specifically, this research determined if play sessions with trained fifth grade students facilitated change in kindergarten children's self concept, internalizing behavior, and externalizing behavior and their parents' stress level.

This study was designed to determine the effectiveness of play therapy as a method of intervention for children with a variety of emotional and behavioral problems. Specifically, the study was aimed at determining the effectiveness of play therapy in: (a) improving self-concepts of children with adjustment difficulties; (b) reducing internalizing behavior problems, such as withdrawal, somatic complaints, anxiety, and depression; (c) reducing externalizing behavioral problems such as aggression and delinquent behaviors; (d) reducing overall behavior problems, social problems, thought problems, and attention problems of children with adjustment difficulties; and (e) reducing parenting stress of parents of children who were experiencing adjustment difficulties.The experimental group consisted of 15 children who were experiencing a variety of adjustment difficulties and received play therapy once per week for 7 to 10 weeks. The control group consisted of 14 children who were experiencing a variety of adjustment difficulties and who were on a waiting list to receive intervention, and therefore, did not receive any treatment during the time of data collection. Experimental and control group children were administered the Joseph Pre-School and Primary Self-Concept Screening Test and parents of all participants completed the Child Behavior Checklist and the Parenting Stress Index at pretest and posttest …

The study compared an experimental group (n=26) who participated in weekly SIS sessions as an adjunct to existing treatment protocols for a period of 6-8 weeks, to a control group (n=14) who matriculated in treatment without the addition of SIS training for a period of 6-8 weeks. Subjects completed a battery of questionnaires at the beginning of the measurement period and at the end of the measurement period. The SASSI-2, The McMaster Family Assessment Device (FAD), and the Rotter Internal-External Locus of Control Scale were used to measure groups on recovery related variables at Pre-Test and Post-Test. Results demonstrated a consistent pattern of improvement over the time measure. The results of the interaction of group and time demonstrated a pattern of gains which did not reach statistical significance, partially as an artifact of the small sample size. An investigation of effect sizes was conducted to detect the effect of SIS training. The training was found to have a moderate effect size, which was consistent with other research using SIS training. Some areas for possible future research were addressed.

This study was designed to determine the effectiveness of intensive sibling group play therapy in: (a) improving the self-concept of child witnesses of domestic violence; (b) reducing internalizing behavior problems, such as withdrawal, somatic complaints, anxiety and depression, of child witnesses of domestic violence; (c) reducing externalizing behavior problems, such as aggression and delinquency, of child witnesses of domestic violence; and (d) reducing overall behavior problems of child witnesses of domestic violence. A second objective of this study was to compare the effectiveness of intensive sibling group play therapy and intensive individual play therapy on the above identified dimensions.