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PIY. Personality Inventory for Youth David Lachar , PhD, and Christian P. Gruber, PhD. The answer to the need for a multidimensional, psychometrically sound self -report instrument designed specifically for young people. What Is the PIY? Personality Inventory for Youth.

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Personality Inventory for YouthDavid Lachar, PhD, and Christian P. Gruber, PhD

The answer to the need for a multidimensional, psychometrically sound self-report instrument designed specifically for young people
what is the piy personality inventory for youth
What Is the PIY? Personality Inventory for Youth
  • Designed to assess emotional and behavioral adjustment, family character and interaction, and neurocognitive and attention-related academic functioning
  • Created for and normed on 9- to 19-year-olds (4th through 12th graders)
  • Completed in 45 minutes by most students reading at grade level 3 or higher, with audio cassette for poor readers and Spanish Administration Booklet
  • Validity scales that alert you to problem denial, exaggeration, and random or incompetent responding
  • Subscales to enhance scale interpretation
  • A parallel inventory (the PIC-2) and a teacher problem checklist (the SBS)
  • Both hand and computer scoring services are available
piy validity scales
PIY Validity Scales


  • Identifies protocols answered carelessly or with inadequate comprehension
  • Points to evidence that an individual has attempted to exaggerate or malinger symptomatology
  • Demonstrates the tendency to disguise or hide psychopathology
  • Provides additional evidence of inattentive, oppositional, or provocative responses that may assist in clarifying the meaning of other scales




abbreviated format piy
Abbreviated-Format PIY
  • The first 80 items of the PIY can be used as a brief classroom screener to quickly identify students who would show problems if the full inventory were administered
  • This Classroom Screening (CLASS) scale accurately predicts the likely presence of clinical findings in a full PIY administration
  • CLASS assists in identifying high-risk students

The PIY is composed of 270 items covering 9 non-overlapping clinical scales and 24 nonoverlappingsubscales.

The 24 subscales reveal more specific clinical content, making the PIY an excellent diagnostic tool.

piy scales and subscales
PIY Scales and Subscales
  • Cognitive Impairment
    • Poor Achievement and Memory
    • Inadequate Abilities
    • Learning Problems
  • Impulsivity/Distractibility
    • Brashness
    • Distractibility and Overactivity
    • Impulsivity
  • Delinquency
    • Antisocial Behavior
    • Dyscontrol
    • Noncompliance
piy scales and subscales continued
PIY Scales and Subscales (continued)
  • Family Dysfunction
    • Parent-Child Conflict
    • Parent Maladjustment
    • Marital Discord
  • Reality Distortion
    • Feelings of Alienation
    • Hallucinations and Delusions
  • Somatic Concern
    • Psychosomatic Syndrome
    • Muscular Tension and Anxiety
    • Preoccupation With Disease
piy scales and subscales continued1
PIY Scales and Subscales (continued)
  • Psychological Discomfort
    • Fear and Worry
    • Depression
    • Sleep Disturbance
  • Social Withdrawal
    • Social Isolation
    • Isolation
  • Social Skills Deficits
    • Limited Peer Status
    • Conflict With Peers

The PIY is supported by extensive research and an array of interpretive strategies for routine use

  • Selected case studies demonstrate the value of the PIY in a wide variety of school, psychiatric, and neuropsychological applications
  • The PIY gives a reliable and valid measure of child and adolescent psychopathology, based on the respondent’s own perceptions
piy standardization base
PIY Standardization Base
  • Sample of 2,327 regular education students
  • Students ranged from 9 to 19 years of age, in Grades 4 through 12
  • Nationally extensive and representative coverage for gender, ethnicity, and parent educational level (SES) across various age groups
piy clinical research base
PIY Clinical Research Base
  • Sample of 1,178 clinically referred participants
  • Collection through various in- and outpatient clinic and special education settings

For more information contact: