Psychology Wiki

Assessment | Biopsychology | Comparative | Cognitive | Developmental | Language | Individual differences | Personality | Philosophy | Social |
Methods | Statistics | Clinical | Educational | Industrial | Professional items | World psychology |

Clinical: Approaches · Group therapy · Techniques · Types of problem · Areas of specialism · Taxonomies · Therapeutic issues · Modes of delivery · Model translation project · Personal experiences ·

The use of adventure in therapy has a long history that has influenced the most recent forms of adventure practices in the therapeutic process. Influences from a variety of learning and psychological theories have contributed to the complex theoretical combination within adventure therapy (AT). The learning theories are collectively known as experiential education. Existing research in adventure therapy reports positive outcomes in effectively improving self concept and self esteem. There are many questions that surround adventure therapy. Even with research reporting positive outcomes it appears that there are many disagreements about the underlying process that creates these positive outcomes (Berman & Davis-Berman, 1995; Gass, 1993; Parker, 1992). This article intends to outline the major aspects to this multi-disciplinary theory.


Adventure therapy is the creation of challenge in a safe environment through experiential activities for groups to solve as a single unit designed for psychological treatment and education (Parker, 1992; Ziven, 1988). Adventure therapy approaches psychological treatment through experience and action within cooperative games, outdoor pursuits, and wilderness expeditions focusing on groups, families, and individuals. In adventure therapy there must be a real or perceived psychological and or physical risk generating a level of anxiety or perceived risk. Perceived risk is significant in eliciting desired behavioral changes. Positive behavior changes, which are synonymous with psychological healing, occur through isomorphic connections. An isomorphic connection is transferring learning from a specific experience to other life experiences. Isomorphic connections occur through the structure of frontloading, debriefing, and perceived risk (Gillis, 2000; Parker, 1992). Frontloading is the creation of a metaphoric theme for a given activity or a series of activities that relates to a targeted treatment issue. Debriefing or processing the experience is a discussion during or after the activity that is related to the frontload, individual, and group treatment issues designed to facilitated isomorphic connections (Weinberg, 2002).

Adventure therapy encompasses varying techniques and environments to elicit psychological change (Gass, 1993). Parker (1992) reports that therapeutic residential programs included adventure therapy in the following forms: 1) mountain climbing, 2) rappelling, 3) back packing, 4) overnight camping, 5) canoeing, 6) and the challenge course. Wilderness therapy, adventure based therapy, and long term residential camping are the most common forms of adventure therapy (Gass, 1993). Adventure Based Counseling is a highly practiced form of AT and has heavily influenced AT theory. Gass (1993), Schoel, Prouty, and Radcliffe (1988) and Schoel and Maizell (2002) have been recognized as leaders in the development of AT theory.


The use of adventure in therapy can be traced back in history to many cultures including Native American, Jewish and Christian traditions (Parker, 1992). Tent therapy, the earliest known form of adventure therapy, emerged in the early 1900s. This therapy brought certain psychiatric patients out of hospital buildings and into tents on the hospital’s lawn. Many patients showed improvement during this treatment that prompted a series of studies, which failed to present enough evidence to support efficacy. Literature on this therapy lasted approximately 20 years and then dropped off completely (Berman & Davis-Berman, 1995).

In the late 1930s this philosophy reappeared mainly as camping programs designed for troubled youth. This era influenced the present day use and extent of adventure therapy programs with adolescents. The format for these programs utilized observation, diagnosis and psychotherapy. One of the first of these programs was Club Camp based in Dallas, Texas and founded by Campbell Loughmiller in 1946. His philosophy of adventure in therapy included the theory that the “…perception of danger and immediate natural consequences for [a] lack of cooperation on the part of [participants]…[after confronting danger] built self-esteem, [while] suffering natural consequences taught the real need for cooperation” (Berman & Davis-Berman, 1995, p. 3). This philosophy evolved into a corner stone for present day adventure therapy practices.

This period also saw the creation of Outward Bound (OB) in the 1940s by Kurt Hahn (Aghazarian 1996; Blanchard, 1993; Dickens 1999; Glass, 1999; Parker 1992; Ziven 1988). Hahn’s impetus for Outward Bound came from believing that the curriculum of his time was not producing well rounded youth. In response he developed the Moray Badge that a student could earn by: 1) showing competency in a variety of athletic events, 2) taking the challenge of a sea or land expedition, 3) choosing a skill development, research project, or craftsmanship and following through with it over an extended time period, and 4) showing the skills necessary for public service (Aghazarian 1996; Blanchard, 1993; Dickens, 1999; Glass, 1999; Parker 1992; Schoel, Prouty, & Radcliffe, 1988; Ziven 1988). Essentially the OB process was designed to develop self-esteem and self-confidence through mentally and physically stressful situations that expand traditional modes of learning and increase student’s capabilities by bringing them closer to nature. Another factor of OB is to gain the essential skills for public service (Aghazarian 1996; Blanchard, 1993; Dickens 1999; Glass, 1999; Parker 1992; Ziven 1988).

The 1900s also saw the birth and transformation of the use of adventure in therapy, and in the 1960s OB came to the United States through the OB school in Colorado (Parker 1992). As Outward Bound and Kurt Hahn’s ideas became more codified, it greatly influenced the development of experiential education, the idea that experience generates learning. Organizations like Project Adventure (PA) and The Association of Experiential Education (AEE) base their work on the theory of experiential education (Berman & Davis-Berman, 1995).

Project Adventure, adopted the OB philosophy in a school environment and adapted it to the ropes course through developing games, initiatives, low elements, and high elements to reach their educational goals. PA first emerged in Hamilton-Enham High School in Massachusetts in 1972 with a principle named Jerry Peigh, son of Robert Piegh founder of the Minnesota OB School. Jerry Peigh wanted to bring the concepts behind the Outward Bound schools, developing self-esteem and self-confidence through mentally and physically straining and stressful situations, to classrooms (Aghazarian 1996; Blanchard, 1993; Dickens, 1999; Gillis & Simpson, 1992; Glass, 1999; Maizell 1988; Parker 1992; Schoel, Prouty, & Radcliffe, 1988; Ziven 1988). The challenge course, based upon the military obstacle course, emerged out of the desire to create an outward bound process that was not separate from the educational curriculum (Blanchard 1993; Dickens 1999). The main focus for this newly created idea concentrated mostly in physical education while also focusing on other academics like English, History, Science, Arts, and some level of counseling (Schoel, Prouty, & Radcliffe, 1988).

Later, the challenge course began to be utilized in mental health settings (Dickens, 1999). Eventually Paul Radcliffe, a PA trained facilitator and school psychologist, Mary Smithy a PA staff member along with a social worker from Addison Gilbert Hospital, started a 2 hour weekly outpatient therapy group. Eventually this model was incorporated into school psychological services and was called the Learning Activities Group (Schoel, Prouty, & Radcliffe, 1988). This later grew into Adventure-Based Counseling (ABC), a technique of therapy utilizing the challenge course (Gillis & Simpson, 1992). With the advent of ABC other therapeutic programs developed over the following years. These developments have influenced the present day definition and theory of adventure therapy.


Adventure therapy theory draws from a mixture of learning and psychological theories. The learning theories include contributions from Albert Bandura, John Dewey, Kurt Hahn, and Kurt Lewin. These theorists also have been credited with contributing to the main theories comprising experiential education. Moote and Woodarski (1997), Blanchard (1993) and Davis, Berman, and Capone (1994) all report that experiential education is a theoretical component of adventure therapy. Alfred Adler, Albert Ellis, William Glasser, Carl Jung, Abraham Maslow, Jean Piaget, Carl Rogers, B.F. Skinner, Gestalttheories, and Group psychology theories comprise the various psychological theoretical contributions. The product of this mixture is described as a cognitive-behavioral-affective perspective designed to target self worth by way of learning through experiencing (Calver 1996; Gass 1993; Gillis and Thomsen, 1996; Itin, 1995; Kimball and Bacon, 1993; Nadler, 1993; Schoel, Prouty, and Radcliffe, 1988; Schoel and Maizell, 2002; West-Smith, 1997). The work of Schoel, Prouty, and Radcliffe (1988) and Schoel and Maizell (2002) in the development and refinement of adventure based counseling have greatly influenced adventure therapy theory and practice. Adventure therapy theory in detail is a cognitive-behavioral-affective learning theory utilizing the psychological components of cognition and behavior. Psychological change, which is measured through behavioral change, is achieved through the isomorphic connections derived from an individual’s interaction with their environment. Psychological change is defined as behavioral change. Behavioral change occurs through isomorphic connections resulting from manipulating the environment that includes creating an atmosphere of unconditional positive regard. Psychological change is also stimulated through the observational learning process. This is exampled by an individual engaging in a process of observation, self observation, and modeling new behaviors that are guided by a group structure. The group structure is manipulated by the AT facilitator to focus on unconditional positive regard, goal attainment by b-needs, being grounded in reality with a sense of control, and a clear understanding of what are rational and irrational belief systems. This focus is designed to target the individual’s sense of self worth because issues in worthiness are the root of mental health issues according to this theoretical structure. When the participant experiences and models behaviors designed to improve self worth backed by unconditional positive regard their self worth will increase and then the individual will generate new behaviors based upon the improved self worth. The process of unconditional positive regard will reinforce the new behaviors (Calver 1996; Gass 1993; Gillis and Thomsen, 1996; Itin, 1995; Kimball and Bacon, 1993; Nadler, 1993; Schoel, Prouty, and Radcliffe, 1988; Schoel and Maizell, 2002; West-Smith, 1997).

This theory, though, has been questioned extensively. These questions cover many issues. Blanchard (1993) states that with all the importance that is placed upon adventure therapy as a therapeutic intervention, the research is restricted to cooperation and trust, and even less research examines therapeutic techniques with adventure therapy and outcomes on pathology. The adventure therapy research field is having difficulty answering the basic questions of how, what, when, where and who. Further research on the standards, requirements, education, and training for individuals conducting adventure therapy is required (Blanchard, 1993). Ziven (1988) stated that the research is based upon the examination of self-concept and social adjustments. Cason & Gillis (1994) conducted a meta-analysis to statistically integrate all the available empirical research on adventure therapy. In total, 99 studies were located covering a 25 year span of research. Out of 99 studies located, only 43 studies fit the criteria for analysis. Many of the studies excluded were dissertations and the authors stated that dissertation studies did not accurately represent the field of adventure programming. The 43 studies used varied in design, methods, and treatment goals. They report that the limited amount of studies for their meta-analysis is proof of the limitations in the research in adventure programming.

The major theme of these questions about adventure therapy is effectiveness. A group has emerged arguing that before any other question in adventure therapy can be answered the question what are the properties that influence the effectiveness of adventure therapy must be answered. This group argues that theory driven research instead of outcome driven research will answer this question. Outcome driven research means that outcomes are the source of explanations for AT theoretical structure (Baldwin, Persing, and Magnuson, 2004). Outcome driven research has generated many conflicting findings that confuse theoretical structure and explanations of effectiveness (Baldwin, Persing, and Magnuson, 2004; Ringer & Gillis, 1996). The outcomes in adventure therapy research are linked to existing psychological theories of change to explain, modify, or validate AT theory. Ringer and Gillis (1996) refer to the theories of change as upwards of 400 forms of therapy and related practices that have emerged from a conglomeration of psychological theories. When outcomes are tied to existing psychological theories within the 400 forms of therapy it is impossible to understand the underlying influences of AT.

Baldwin, Persing, and Magnuson (2004) report that with all the research to date and the numerous reports of positive outcomes there is still little understanding of the underlying processes influencing these positive outcomes. This has caused extensive discussion concerning why adventure therapy appears effective in treating a multitude of DSM related mental disorders in children, adolescents, and adults (Blanchard, 1993; Gass, 1993, Gillis, 2000). Blanchard (1993), Davis, Berman, and Capone (1994), Gass (1993), Gillis (without year; 2000), Gillis and Thomsen (1996), Gillis and Mcleod (1992), Hatala (1992), Maizell (1988), Moote and Woodarski (1997), and Ziven (1988) have attempted to explain the underlying process to adventure therapy. Gillis (2000) describes adventure therapy as non-traditional therapy allowing for the pre-therapeutic adolescent to experience their mental health issues. Gillis (et al) describes the following theoretical aspects of adventure therapy: 1) it is a physical augmentation to traditional therapy for the purpose of a shared history with the participants and the therapist, 2) there is a sense of natural and logical consequences in the activities, 3) environment should be structured into the activities, 4) a participant perceives risk, stress, and anxiety so the they can problem solve and generate their own sense of community for feedback and behavior modeling, 5) participants will transfer their present attitudes and behaviors into the activities, 6) works with a small group of participants, and 7) requires a facilitator that models appropriate behaviors and guides the group towards adaptive self regulation that is based upon appropriate behaviors. Maizell (1988) focused on adventure therapy’s normalizing effects on deficits in delinquent adolescent’s developmental process. Maizell (1988) and Gillis and Mcleod (1992) report these normalizing effects as the process of moving into formal operational thinking which is achieved through the experiential learning theories in adventure therapy. Maizell (1988) further reports that a therapist holds the skills to make the adventure experience a therapy. Moote and Woodarski (1997), Blanchard (1993) and Davis, Berman, and Capone (1994) state the theoretical basis of adventure therapy describes the participant as a learning being who achieves their greatest learning outside the classroom, through challenge and perceived risk, promoting social skills through experiencing a group challenge mixed with affect, cognition, psychomotor activity and formal operational thinking generated through metaphor. Hatala (1992) states that experiential learning becomes adventure therapy when the activities are planned and implemented as vehicles for patients to address individual treatment goals. Hatala (1992) also theorized that adventure experiences molded into a more therapeutic group model ran by the therapist could have a more significant effect than the one day intervention run by counselors. Ziven (1988) describes the importance of having the clinician as an integral part of the adventure therapy process so that there can be a strong transference of the adventure experience to other aspects of the therapeutic process. Baldwin, Persing, and Magnuson (2004), though, report that many of these explanations are “…folk pedagogies…” that lack thorough empirical evidence (p. 172). Hattie, Marsh, Neill, and Richards (1997) report that adventure therapy research has focused on outcomes without exploring theoretical structure. They report that the focus of AT research needs to concentrate on testing and validating theoretical structure. Baldwin, Persing, and Magnuson (2004) further report that adventure therapy’s theoretical structure must be studied and documented. After a theoretical structure is validated then a discussion on outcomes can occur (Hattie, Marsh, Neill, and Richards, 1997).


Even though there are certain arenas that question the theory of adventure therapy the practice of adventure therapy continues. The practice continues because of numerous reported positive outcomes in adventure therapy research. Davis, Ray and Sayles (1995) studied the effects adventure therapy on 266 high risk youth in rural areas. They reported lasting improvement in behavior over a six-month period. Haris, Mealy, Mathews, Lucan, and Monczygemba (1993) also report on adventure therapy effectiveness. They report that adventure therapy is effective because specifically designed activities can bring about specific outcomes. Adventure therapy is further viewed as effective because of the apparent positive effects in treating developmental issues with Juvenile offenders and adolescent offenders with drug abuse and addiction issues (Gillis & McLeod, 1992). The effectiveness of adventure therapy with offenders with drug abuse and addiction issues in mental health treatment is related to the characteristics present in addicted offenders. They “…(1) need more structure, [and] (2) they work better with an informal, tactile-kinesthetic design….” (Gillis & Mcleod, 1992, p.151). Cason and Gillis’ (1994) findings are congruent with Gillis and Mcleod (1992) when they reported that adventure therapy as treatment was equally effective for adjudicated youth and other adolescent populations. Cason and Gillis (1994) report that 62.2% of adolescents who participated in an adventure therapy group are at an advantage for coping with adolescent issues than adolescents that did not. They also report that there is a 12.2% improvement in self concept for adolescents who participate in adventure therapy. Cason and Gillis (1994) likened their findings to a study by Smith, Glass and Miller (1980) who report that adolescents are approximately 30% better off in their ability to cope with mental health issues than those that do not participate in a psychotherapeutic treatment making the implication that adventure therapy effectiveness is comparable to the effectiveness of psychotherapeutic treatment. The reported concepts contributing to adventure therapy effectiveness are: increases in self esteem, self concept, self efficacy, self perceptions, problem solving, locus of control, behavioral and cognitive development, decreases in depression, decrease in conduct disordered behaviors, overall positive behavioral changes, improved attitude, and that adventure therapy generates a sense of individual reward. Further aspects that contribute to adventure therapy’s effectiveness are that it: increases group cohesion, aids in diagnosing conduct disorders in adolescents, improves psychosocial related difficulties, is effective in treating drug addicted and juvenile youth, treats sensation seeking behaviors, improves clinical functioning, facilitates connecting participants with their therapist and treatment issues, and increases interpersonal relatedness (Baucom, Gillis, Durden, Bloom & Thomsen, 1996; Gillis 1992; Burney 1992; Blanchard 1993; Dickens 1999; Gillis and Simpson 1992; Gillis, Simpson, Thomsen & Martin 1995; Gillis without year; Glass 1999; Moote & Woodarski 1997; Newberry & Lindsay 2000; Parker 1992; Simpson & Gillis, with out year; Teaff & Kablach 1987; Ziven 1988). Berman & Davis-Berman (1995) compared the reduction in recidivism rates with traditional programs and programs with adventure therapy. They reported that programs using adventure therapy have lower recidivism. Lastly Blanchard (1993) and Ziven (1988) report increases in interpersonal relatedness, which they describe as the most important factor for improving mental health issues.


There are many agreements and disagreements within the field of adventure therapy. It does appear that there is agreement that adventure therapy is a mixture of psychological and learning theories. There are also agreements that adventure therapy is effective in treating a multitude of issues that affect an individual’s sense of self worth. There appears to be more disagreement though about how the properties within the exiting theory of adventure therapy actually influence the positive outcomes. Even with these many questions adventure therapy continues to be practiced within in many mental health arenas and viewed as an effective treatment based upon the positive outcomes reported in adventure therapy research.

See also


  • Aghazarian, T. L., (1996) Use of a challenge course as an intervention tool to adolescent self-esteem. Unpublished doctoral dissertation, San Jose State University, California.
  • Baldwin, C., Persing, J. & Magnuson, D. (2004). Role of theory, research, and evaluation in adventure education. Journal of Experiential Education, 26(3) 167-183.
  • Baucom, L., Gillis, L., Durden, J., Bloom, S. & Thomsen, D. (1996). A brief report on project adventure’s project challenge: an alternative to juvenile incarceration funded by the state of Georgia division of children and youth services. Hamilton, MA: Project Adventure.
  • Berman, D. S. & Davis-Berman, J. (1995). Outdoor education and troubled youth [on line]. Available: http//
  • Blanchard, C. (1993). Effects of ropes course therapy on interpersonal behavior and self esteem of adolescent psychiatric inpatients. Unpublished doctoral dissertation, New Mexico State University, New Mexico
  • Burney, J. (1992) Learning the ropes of problem solving and self control: A study of an experiential ropes program for special education students. Unpublished doctoral dissertation, The Union Institute, Cincinnati.
  • Calver, R. (1996). Theory for practice: A frame work for thinking about experiential education. Journal of Experiential Education, 19 p. 8-13.
  • Cason, D. & Gillis, H. L. (1994) A meta-analysis of outdoor adventure programming with adolescents. The Journal of Experiential Education Vol 17(1).
  • Davis, D. Ray, J. & Sayles, C. (1995). Ropes course training for youth in a rural setting: “At first I thought it was going to be boring…” Child & Adolescent Social Work Journal, 12, 445-463.
  • Davis-Berman, Berman and Capone (1994). Therapeutic wilderness programs: A national survey. Journal of Experiential Education, 17 (2), 49-53.
  • Dickens, J., C. (1999) Behavioral indicators of conduct disorder in a ropes course initiative. Unpublished doctoral dissertation, The Union Institute, Cincinnati.
  • Gass, M. A. (1993). Adventure in therapy: Therapeutic applications of adventure programming in mental health settings. Boulder, CO: Association for Experiential Education.
  • Gillis, H.L. (Without year) If I conduct outdoor pursuits with clinical populations, am I an adventure therapist [on line]. Available: http//
  • Gillis, H.L. (1992) Therapeutic uses of adventure-challenge-outdoor-wilderness: theory and research. Paper presented at the Coalition of Reeducation in the Outdoors Symposium Bradford Woods Indiana University, Martinsville, IN [on line]. Available:
  • Gillis, HL (2000) Going around in circles research and program evaluation in therapeutic adventure and adventure in therapy. Paper presented at the Second International Adventure in Therapy Conference: Therapy Within Adventure 23 March 2000 – Augsburg / Germany [on line]. Available: lgillis/ IATC2/going_around_in_circles_Color_files/frame.htm
  • Gillis, H. L. & McLeod, J. (October, 1992) Successful indoor adventure activities for treating substance abuse with adjudicated adolescents and incarcerated adults. Proceedings of the 20th International Conference of the Association for Experiential Education.
  • Gillis, H. L. & Simpson, C.A. (1992). Project Choices: Adventure based residential drug treatment for court referred youth. In M. A. Gass (Ed) Adventure therapy: Therapeutic applications of adventure programming in mental health settings Boulder, CO: Association for Experiential Education.
  • Gillis, H.L. Thomsen, D. (1996) A research update of adventure in therapy (1992-1995) Challenge activities and ropes courses, wilderness expedition, and residential camping programs. U.S.: Georgia
  • Gillis, H.L., Simpson, C. A., Thomsen, D. D., & Martin, B. A. (1995). Final evaluation of project adventure’s co-op program for court referred, drug involved youth. [on line]
  • Glass J. S. (1999) The relationship of participation in a low-element challenge course to adolescent’s self reported perceptions of group cohesion. Unpublished doctoral dissertation, University of North Carolina, Greensboro.
  • Harris, P. M., Mealy, L., Matthews, H., Lucas, R., & Mcozygemba, M. (1993). A wilderness challenge program as correctional treatment. Journal of Offender Rehabilitation, 19, p. 149-164.
  • Hatala, E. (1992) Experiential learning and Therapy. In Hanna Glenda (Ed) Celebrating our tradition Charting our Future: Proceedings of the International Conference of the Association for Experiential Education. Alberta, Canada.
  • Hattie, J., Marsh, H. W., Neill, J. T., & Richards, G. E. (1997). Adventure education and outward bound: Out-of-class experiences that make a lasting difference. Review of Educational Research, 67, 43-97
  • Itin, C. (1995). Adventure therapy and the addictive process. Journal of Leisurability, 22.
  • Kimball, R.O., & Bacon, S. B. (1993) The wilderness challenge model. In M. Gass (1993) Adventure therapy: Therapeutic applications of adventure programming, Kendall/Hunt, Dubuque, Iowa.
  • Maizell, R. S. (1988) Adventure-based counseling as a therapeutic intervention with court-involved adolescents. Dissertation Abstracts International, 50/06-B, 2628.
  • Moote, G. T, Jr., & Woodarski. J. S. (1997). The acquisition of life skills through adventure-based activities and programs: A review of the literature. Adolescence, 32, p. 143-167.
  • Newbarry, E. H., & Lindsay, J. F. (2000). The impact of social skills training and challenge course training on locus of control of youth from residential care. Journal of Experiential Education 23(1) p. 39-42.
  • Nadler, R. S. (1993). Therapeutic process of change. In M. Gass (1993) Adventure therapy: Therapeutic applications of adventure programming, Kendall/Hunt, Dubuque, Iowa.
  • Parker, M. W. (1992). Impact of adventure interventions of traditional counseling interventions (ropes course). Unpublished doctoral dissertation, The University of Oklahoma, Oklahoma.
  • Ringer, M. & Gillis H. L. (1995). Managing psychological depth in adventure programming. Journal of Experiential Education, 18(1) 42-50.
  • Schoel, J. & Maizell, S. (2002). Exploring islands of healing: New perspectives on adventure based counseling. Project Adventure; Beverly, MA.
  • Schoel, J. Prouty, D., & Radcliffe, P. (1988). Islands of Healing: A Guide to Adventure Based Counseling. Hamilton, MA / Project Adventure.
  • Simpson, C.A. & Gillis, H.L. (without year) Working with those who hurt others: adventure in therapy with juvenile sexual perpetrators [on line]. Available:
  • Smith, M. L., Glass, G. V., & Miller, T. I. (1980). The benefits of psychotherapy. Baltimore: Johns Hopkins University Press.
  • Teaff, J. & Kablach, J. (1987). Psychological Benefits of outdoor adventure activities. Journal of Experiential Education, 10 n2 p. 43-46
  • Weinberg, P. (2002). The challenge course as a therapy: A literature review on effectiveness, theory, and research. Unpublished masters thesis, Saybrook Graduate School and Research Institute, San Francisco.
  • West-Smith, L. (1997). Basic therapeutic communication: Theoretical and practical information for outdoor adventure professionals. Journal of Experiential Education, 20.
  • Ziven, H. S. (1988) The effects of the challenge group treatment program on psychiatrically hospitalized adolescents. Unpublished doctoral dissertation, Massachusetts School of Professional Psychology, Massachusetts.
This page uses Creative Commons Licensed content from Wikipedia (view authors).