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House-Tree-Person Projective Drawing Technique. Presentation by: Jean Evans & Kristen Speer CNED 5303 11/11/04. Facts. Author: John N Buck Developed in 1947 with revisions in 1948, 1949, and (Buck and Warren) 1992
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House-Tree-PersonProjective Drawing Technique Presentation by: Jean Evans & Kristen Speer CNED 5303 11/11/04
Facts • Author: John N Buck • Developed in 1947 with revisions in 1948, 1949, and (Buck and Warren) 1992 • Originally developed as an outgrowth of the Goodenough Scale* utilized to access intellectual functioning
*Florence Goodenough developed Measurement of Intelligence by Drawings in 1926. The instrument focus was on the human figure and its purpose was to derive a measure of I.Q.
Facts (cont.) • Publisher: • Western Psychological Services • 12031 Wilshire Blvd • Los Angeles, CA 90025 • 1-800-648-8857
Cost • Many types of packages available • H-T-P Interpretation Booklet: • 4 page booklet that allows administrator to record, score, and interpret all information from a drawing session • $19.92/package of 25
Purpose • *Designed to aid clinician in obtaining information concerning an individual’s sensitivity, maturity, flexibility, efficiency, degree of personality integration, and interaction with the environment. • *Provides a structured context for the projection of unconscious material. • *http://www.deltabravo.net/custody/psychtests.htm
Purpose (cont) • *Buck felt that artistic creativity represents a stream of flow onto graphic art. He believed that through drawings, subjects objectified unconscious differences by sketching the inner image of the primary process. • *www.guidetopsychology.com/testing.htm
Recommended Use • Use in combination with other projective measurement instruments, usually given first as an “ice-breaker” • Anyone over 3 years of age • Especially appropriate for individuals who are non-English-speaking, culturally different, educationally deprived, or developmentally disabled.
Administration • Client draws three objects: a house, a tree, a person on plain paper • Administrator then uses a Post-Drawing Inquiry checklist (specific questions) to enable client to describe, define, and interpret his/her drawings • Client responses are organized under 8 categories
Administration (cont.) • 8 categories for client responses: • General Observations • Proportion • Perspective • Detailing • Nonessential Details • Irrelevant Details • Line Quality • Use of Color
Drawing Analysis • Drawings are interpreted using two “paths”; intra-subjective and inter-subjective • First path, intra-subjective, considers the content and quality of the three drawings; also explores the depth of material behind the drawings • Second path, inter-subjective, considers features indicative of a certain emotional tendency
Time Factors and Considerations • No time limit (is based on average time) • Paper given to client to draw on should be blank • This is a projective, not a diagnostic, test • Not “standardized” • Can purchase a supplemental interrogation form which derives an IQ score
Reliability/Validity • *Reliability and validity studies have been most supportive of the cognitive uses of the test in 3 to 10 year old children. • *http://www.psychpage.com/projective/proj_draw_notes.html
Normative Data • Not used/appropriate for this type of test as every drawing is different for every person (individualized) • No norms/no standardization data available • Some aspects of drawings may be indicative of psychological trends
Administrator/Interpreter Qualifications • Bachelor’s degree
Personal Evaluation • Limitations: • original test written in 1970’s; Family/cultural values, trends, ideas have changed • Interpretation may be influenced by clinician bias/prejudice
Personal Evaluation(cont) • Advantages: • Good ice-breaker to use in preparation for other tests • Good for engaging reluctant clients • Used for any ages over 3 • Useful for non-verbal clients • Useful for non-English speaking clients
Bibliography • Paul Jerry, Ph.D., Centre for Graduate Education in Applied Psychology, Notes on Projective Drawings • Richard Niolon, Ph.D., Chicago School of Professional Psychology, Notes on Projective Drawings • Western Psychological Services (WPS) • www.behavioraldynamicsphil.com • www.cps.nova.edu/~cpphelp/HTP.html • www.deltabravo.net • www.guidetopsychology.com/testing.htm • www.sydneyplus.ets.org • www.therapeuticchild.ca/children_drawings/tree_test_house_drawings.htm