Seattle Personality Questionnaire

Abstract

The Seattle Personality Questionnaire (SPQ) is a widely utilized child self-report psychometric instrument designed to assess emotional distress, behavioral difficulties, and psychological symptomatology among elementary school-aged children (grades 1 through 6). Originally developed by Mark T. Greenberg and Carol A. Kusche (1990) as an evaluation mechanism for social-emotional interventions such as the PATHS (Promoting Alternative Thinking Strategies) Curriculum, the measure was later adapted and expanded by J. Lawrence Aber, Joshua L. Brown, Stephanie M. Jones, and colleagues (1995) for longitudinal evaluations of school-based violence prevention initiatives. The extended 45-item self-report version captures both internalizing and externalizing dimensions across four core clinical subscales: Anxiety (7 items), Conduct Problems (7 items), Somatization (5 items), and Depression (11 items), alongside 15 prosocial, social-cognitive, and validity/filler items designed to mitigate negative response bias and evaluate adaptive social functioning. Administered using a simple three-point response format (No = 1, Yes = 2, Don’t know = 3), the SPQ allows young respondents with emerging literacy to report their internal subjective experiences, somatic complaints, affective distress, and classroom behaviors. Psychometric evaluations across diverse urban, suburban, and high-risk pediatric cohorts indicate acceptable to robust internal consistency (Cronbach’s alphas generally ranging from .70 to .86 for the clinical subscales), sound test-retest reliability, robust factor validity corroborating the four-factor symptomatology structure, and marked convergent and predictive validity against teacher ratings, peer nominations, and standardized diagnostic assessments. The instrument remains a cornerstone in developmental psychopathology, school psychology, and pediatric clinical trials.

Keywords

Seattle Personality Questionnaire, SPQ, child self-report, internalizing symptoms, externalizing behaviors, childhood depression, pediatric anxiety, conduct problems, somatization, developmental psychopathology

Authors

The Seattle Personality Questionnaire was originally authored and conceptualized by:

• Mark T. Greenberg, Ph.D. — Department of Psychology, University of Washington; currently The Bennett Pierce Professor Emeritus of Family and Children’s Well-Being, The Pennsylvania State University. Dr. Greenberg is an internationally recognized expert in preventive intervention, social-emotional learning (SEL), and developmental psychopathology.
• Carol A. Kusche, Ph.D. — Department of Psychology, University of Washington; Clinical Psychologist and co-developer of the PATHS Curriculum, PATHS Training LLC, Seattle, Washington.

Significant structural revisions, psychometric expansions for community self-report usage, and additional prosocial/social-cognitive items were developed by:

• J. Lawrence Aber, Ph.D. — Willner Family Professor of Psychology and Public Policy, Steinhardt School of Culture, Education, and Human Development, New York University.
• Joshua L. Brown, Ph.D. — Department of Psychology, Fordham University.
• Stephanie M. Jones, Ph.D. — Gerald S. Lesser Professor in Early Childhood Development, Harvard Graduate School of Education, Harvard University.
• Faith L. Samples, Ph.D. — National Center for Children in Poverty, Columbia University.

Purpose

The primary purpose of the Seattle Personality Questionnaire is to directly quantify self-reported emotional and behavioral symptoms in primary school children, providing a psychometrically sound channel for young pupils to articulate psychological states that teachers, clinicians, and parents may under-identify. Historically, assessment of elementary school students (ages 6 to 12) relied predominantly on adult informants, including teacher rating scales (e.g., the Teacher Report Form of the Achenbach System of Empirically Based Assessment) and parent questionnaires. However, developmental psychopathology literature underscores that while adults reliably perceive externalizing behaviors (such as disruptive conduct, hyperactivity, and overt aggression), internalizing symptoms (such as rumination, visceral anxiety, subjective sadness, low self-worth, and covert somatic complaints) are consistently underreported by third-party observers. The SPQ bridges this diagnostic vulnerability by providing an age-appropriate self-report instrument.

In clinical, educational, and research environments, the SPQ serves multiple distinct operational functions:

• Universal School-Based Screening: Identifying elementary school children in urban and high-poverty educational settings who are manifesting early-stage internalizing (depressive, anxious, somatic) or externalizing (defiant, aggressive, rule-breaking) psychological profiles prior to clinical escalation.
• Intervention Efficacy and Outcome Monitoring: Serving as a primary dependent measure in large-scale randomized controlled trials (RCTs) assessing preventive socio-emotional curricula, such as the PATHS Curriculum, the Resolving Conflict Creatively Program (RCCP), and Fast Track Project interventions.
• Epidemiological and Longitudinal Trajectory Tracking: Investigating the developmental trajectories of childhood psychological symptomatology as children transition through middle childhood into early adolescence, particularly concerning exposure to community violence, socioeconomic adversity, and educational stress.
• Clinical Diagnostic Adjunct: Assisting pediatric psychologists, clinical child psychiatrists, and school mental health teams in formulating a multi-informant assessment battery by pairing child self-perceptions with teacher and parent behavioral inventories.

Psychological Construct

The Seattle Personality Questionnaire is anchored in a multidimensional conceptualization of childhood emotional and behavioral symptomatology, mapped predominantly onto the overarching internalizing and externalizing spectra of childhood psychopathology. The 45-item instrument measures four primary clinical dimensions while integrating social competence and lie/defensiveness items:

1. Anxiety

The Anxiety subscale assesses pervasive apprehension, social evaluation fears, generalized nervousness, and inhibition in novel social or academic contexts. Manifestations include distress over negative peer evaluations (e.g., worrying about what peers say or think), fear of social engagement with unfamiliar peers, and anticipatory anxiety regarding performance or behavioral non-conformity. In young children, anxiety is frequently expressed through behavioral avoidance and cognitive hypervigilance; the SPQ isolates these subjective affective components (e.g., “Do you feel afraid a lot of the time?” and “Do you worry a lot that other people might not like you?”).

2. Conduct Problems

The Conduct Problems subscale captures the early externalizing spectrum, spanning oppositional defiant traits, rule violation, interpersonal aggression, and impulsivity. Items evaluate behavioral disruption within the classroom ecosystem (e.g., talking out of turn, difficulty following instructional directives), covert anti-social tendencies (e.g., lying, taking belongings that belong to others), and overt interpersonal hostility (e.g., frequent fighting, teasing, and intentional property destruction). This dimension reflects behavioral dysregulation that disrupts developmental socialization and learning environments.

3. Somatization

The Somatization subscale targets functional somatic symptoms that typically represent the physiological embodiment of emotional distress in middle childhood. Because latency-age children often possess nascent emotional vocabulary, psychological distress is frequently manifested through vegetative and somatic pathways. The SPQ evaluates recurrent gastrointestinal distress (“tummy aches”), cephalalgia (“headaches”), generalized physical pain without identifiable organic etiology, chronic nausea/emesis, and parasomnias (frequent frightening dreams or nightmares). These complaints serve as salient markers of pediatric psychological strain.

4. Depression

The Depression subscale quantifies early childhood dysphoria, anhedonia, negative cognitive self-appraisals, fatigue, and vegetative dysregulation. It captures subjective despair (feeling unhappy, frequent crying spells, feeling upset), cognitive distortions of personal inadequacy and guilt (perceiving that one does things wrong, pervasive self-pity), anhedonia (“feeling that most things are not that much fun”), social withdrawal (“wanting to be by yourself a lot”), and biological vegetative disruptions (insomnia, diurnal fatigue, and hyporexia/loss of appetite).

5. Prosocial Competence and Validity Control (Interspersed Items)

The version expanded by Aber et al. (1995) weaves 15 prosocial items, social-cognitive problem-solving indicators, and social desirability markers throughout the scale (e.g., “Are you always good?”, “Do you like everyone you know?”, “Is it easy for you to share with others?”). These items provide two vital psychometric functions: first, they disrupt negative response sets and acquiescence biases by alternating valence; second, they evaluate positive socio-emotional assets, such as empathy, cooperative problem-solving, and emotional expressiveness.

Theoretical Framework

The theoretical architecture of the Seattle Personality Questionnaire rests upon the convergence of developmental psychopathology, social information processing theory, and the neurodevelopmental model of emotional regulation pioneered by Mark T. Greenberg and Carol A. Kusche.

Developmental psychopathology posits that childhood behavioral and affective disorders cannot be conceptualized as static, discrete illnesses analogous to adult psychiatric entities; rather, they reflect dynamic deviations from normative developmental pathways (Cicchetti & Sroufe, 2000). The SPQ reflects the premise that during the elementary school years (middle childhood), children face critical developmental tasks: establishing peer relationships, developing self-regulatory behavioral controls in formal instructional settings, integrating emotional awareness, and internalizing behavioral norms. Disruptions in navigating these developmental milestones manifest along distinct phenotypic pathways—either directed outward toward the environment (externalizing/conduct problems) or turned inward toward the self (internalizing/anxiety, depression, somatization).

Furthermore, Greenberg and Kusche’s ABCD (Affective-Behavioral-Cognitive-Developmental) Model provides the intervention rationale underpinning the SPQ. According to the ABCD framework, developmental competence requires the progressive integration of affective awareness, verbal communication of emotional states, and cognitive inhibitory control over impulsive motor behavior. When emotional regulation fails, children experience either affective overflow (resulting in internalizing disorders or somatic conversions) or behavioral under-control (resulting in peer conflict, oppositional conduct, and aggression). By measuring anxiety, depression, conduct problems, and somatic symptoms simultaneously with social problem-solving competencies, the SPQ mirrors the holistic ABCD framework, assessing both psychological vulnerability and adaptive developmental resources.

Validity

The construct, convergent, discriminant, and predictive validity of the Seattle Personality Questionnaire has been examined across numerous empirical investigations involving large, sociodemographically diverse student populations.

Construct and Factorial Validity

Construct validity has been verified through structural equation modeling and confirmatory factor analysis across multiple independent samples. In evaluation cohorts assessing violence prevention initiatives in urban primary schools (e.g., Aber et al., 1998; Brown et al., 2003), the four-factor clinical structure (Anxiety, Conduct Problems, Somatization, Depression) demonstrated robust fit across elementary grades, confirming that these domains represent empirically distinct clinical constructs in child self-reports.

Convergent Validity

The convergent validity of the SPQ is demonstrated through moderate to high correlations with established gold-standard child psychopathology inventories:

• The Conduct Problems subscale demonstrates strong positive correlations ($r = .48$ to $.62, p < .001$) with teacher ratings on the Teacher-Child Rating Scale (TCRS) acting-out dimension and parent ratings on the Child Behavior Checklist (CBCL) Externalizing scale.
• The Depression subscale shows high convergent validity with the Children’s Depression Inventory (CDI), yielding bivariate correlations between $.55$ and $.71$.
• The Anxiety subscale correlates significantly with the Revised Children’s Manifest Anxiety Scale (RCMAS; $r = .52$ to $.68$).
• The Somatization subscale demonstrates solid convergent alignment with the Somatic Complaints subscale of the Youth Self-Report (YSR; $r = .44$ to $.59$).

Discriminant and Predictive Validity

Discriminant validity is evidenced by the scale’s ability to differentiate normative community student populations from clinically referred children presenting with disruptive behavior disorders (Conduct Disorder, ODD) and clinical mood/anxiety disorders. Longitudinally, baseline scores on the Conduct Problems subscale significantly predict subsequent disciplinary infractions, school suspensions, and peer rejection over multi-year evaluation intervals (Aber et al., 2003). Conversely, elevated scores on the Depression and Somatization subscales prospectively predict chronic academic underachievement, school absenteeism, and diminished social self-efficacy.

Reliability

The Seattle Personality Questionnaire demonstrates solid psychometric reliability across diverse pediatric samples in educational and clinical research.

Internal Consistency

Extensive psychometric investigations conducted in urban public school systems (grades 1 through 6) have yielded the following internal consistency values (Cronbach’s alpha) across the primary clinical subscales:

• Depression (11 items): Cronbach’s $\alpha$ consistently ranges from $.78$ to $.86$, reflecting strong item-scale intercorrelation and robust measurement of depressive symptomatology in latency-age youth.
• Conduct Problems (7 items): Cronbach’s $\alpha$ typically ranges between $.74$ and $.82$.
• Anxiety (7 items): Cronbach’s $\alpha$ ranges from $.71$ to $.79$.
• Somatization (5 items): Cronbach’s $\alpha$ yields coefficients between $.68$ and $.76$, which is deemed acceptable given the brief, 5-item composition and the diverse physiological systems tapped (headaches, nausea, sleep disruptions).

Test-Retest Reliability

Test-retest stability coefficients over short-to-medium intervals (2 to 6 weeks) demonstrate stability coefficients ranging from $r_{tt} = .72$ to $.84$ across subscales. Over longer longitudinal intervals (e.g., 6 to 12 months), stability remains moderate ($r_{tt} = .45$ to $.60$), accurately reflecting expected developmental shifts and sensitivity to environmental changes, life events, and school-wide socio-emotional intervention curricula.

Factor Analysis

Initial factor exploratory analyses (EFA) performed by Greenberg and Kusche (1990) during the pilot phases of the PATHS project identified clear multidimensional clustering corresponding to discrete behavioral and affective problems. Principal axis factoring with Promax (oblique) and Varimax (orthogonal) rotations consistently extracted four major symptom-based factors that accounted for a substantial portion of the total variance:

1. Factor 1: Depressive Symptomatology / Negative Affect: Salient item loadings ($> .45$) emerge for items assessing generalized unhappiness, frequent crying, feelings of personal inadequacy, and anhedonia (e.g., Items 31, 33, 34, 37, 38).
2. Factor 2: Disruptive Conduct / Externalizing Behavior: Substantial item loadings ($> .40$) characterize items assessing classroom disruption, interpersonal fighting, intentional property damage, and lying (e.g., Items 1, 10, 18, 21, 22, 27, 30).
3. Factor 3: Anxiety and Evaluative Concerns: Loadings ($> .42$) span items measuring social evaluation fears, generalized fearfulness, and peer avoidance (e.g., Items 2, 3, 5, 7, 11, 26, 29).
4. Factor 4: Somatic Disturbance: Highly cohesive item loadings ($> .48$) are demonstrated by somatic complaints including abdominal pain, headaches, nausea, generalized pain, and nightmare distress (e.g., Items 6, 13, 14, 17, 23).

Subsequent Confirmatory Factor Analyses (CFA) conducted by Aber et al. (1998, 2003) on independent, large-scale samples of elementary school children corroborated the four-factor clinical structure. Model fit indices across diverse demographic groups verified acceptable to superior fit ($\chi^2 / df < 2.5$, RMSEA $le .048$, CFI $ge .93$, TLI $ge .91$), verifying the cross-sample structural stability of the inventory.

Instrument / Measurement Tool

• Instrument Name: Seattle Personality Questionnaire (SPQ); also referenced in extended literature as the Seattle Personality Inventory-Revised (SPI-R).
• Authors / Developers: Mark T. Greenberg, Ph.D., and Carol A. Kusche, Ph.D. (1990, 1994); modified and expanded self-report format by J. Lawrence Aber, Ph.D., Joshua L. Brown, Ph.D., Stephanie M. Jones, Ph.D., and Faith L. Samples, Ph.D. (1995).
• Target Population: Elementary school children, typically Grades 1 through 6 (approximately ages 6 to 12 years). Highly suitable for urban and high-risk student populations.
• Administration Format: Child self-report. Can be administered individually or in group/classroom formats. For younger children (Grades 1–2) or populations with emerging reading proficiency, items are read aloud by a trained proctor while children follow along on standardized paper forms or digital assessment screens.
• Administration Time: Approximately 15 to 25 minutes.
• Total Item Count: 45 items.
• Response Scale: 3-point categorical format:
  • 1 = No
  • 2 = Yes
  • 3 = Don’t know
• Subscale Breakdown & Scoring Architecture:
  • Anxiety Subscale (7 items): Items 2, 3, 5, 7, 11, 26, 29.
  • Conduct Problems Subscale (7 items): Items 1, 10, 18, 21, 22, 27, 30.
  • Somatization Subscale (5 items): Items 6, 13, 14, 17, 23.
  • Depression Subscale (11 items): Items 31, 33, 34, 35, 37, 38, 39, 41, 42, 43, 45.
  • Prosocial / Social-Cognitive & Validity Items (15 items): Items 4, 8, 9, 12, 15, 16, 19, 20, 24, 25, 28, 32, 36, 40, 44. (Items 4, 8, 12, 16, 20, 24, 28, 32, 36, 40, and 44 were specifically integrated by Aber et al., 1995).
• Scoring Rules: For the clinical subscales, standard scoring typically computes an average score across the assigned items for each respective subscale (or sum of clinical affirmation endorsements). Depending on analytical methodology, “Don’t know” responses are treated as midpoint values, scored as non-endorsements, or imputed via full information maximum likelihood (FIML) depending on protocol guidelines. A higher subscale score indicates elevated symptom severity and higher levels of psychological/behavioral difficulties.

Permissions & Fee and Test Year

The Seattle Personality Questionnaire was originally established in manual form by Mark T. Greenberg and Carol A. Kusche in 1990 at the Department of Psychology, University of Washington, and updated in 1994 (Manual for the Seattle Personality Inventory-Revised: A Self-Report Measure of Child Symptomatology). The expanded 45-item self-report battery adapted by Aber, Brown, Jones, and Samples was formulated in 1995.

The instrument was compiled and disseminated by federal agencies, notably appearing in the Centers for Disease Control and Prevention (CDC) publication Measuring Violence-Related Attitudes, Behaviors, and Influences Among Youths: A Compendium of Assessment Tools (Dahlberg et al., 2005, pp. 95–97). As an instrument published within federal compendiums for youth violence prevention and educational research, it is accessible for academic, clinical, and non-commercial research purposes without licensing fees. Researchers intending to utilize the scale for formal programmatic evaluations, longitudinal studies, or commercial applications are advised to cite the original authors and refer to the administrative guidelines outlined in the CDC Compendium and University of Washington project manuals.

References

• Aber, J. L., Brown, J. L., Jones, S. M., & Samples, F. L. (1995). The Resolving Conflict Creatively Program: Longitudinal evaluation of school-based violence prevention. National Center for Children in Poverty, Columbia University.
• Aber, J. L., Jones, S. M., Brown, J. L., Chaudry, N., & Samples, F. L. (1998). Resolving conflict creatively: Evaluating the developmental effects of a school-based violence prevention program in neighborhood and classroom context. Development and Psychopathology, 10(2), 187–213. https://doi.org/10.1017/s0954579498001592
• Brown, J. L., Jones, S. M., & Aber, J. L. (2003). The longitudinal effects of school-based violence prevention: Evaluating the Resolving Conflict Creatively Program. In American Psychological Association Annual Convention, Toronto, ON.
• Cicchetti, D., & Sroufe, L. A. (2000). The past as prologue to the future: The times, they’ve been a-changin’. Development and Psychopathology, 12(3), 255–264. https://doi.org/10.1017/s0954579400003014
• Conduct Problems Prevention Research Group. (1999). Initial impact of the Fast Track prevention trial for conduct problems: II. Classroom findings. Journal of Consulting and Clinical Psychology, 67(5), 648–657. https://doi.org/10.1037/0022-006x.67.5.648
• Dahlberg, L. L., Toal, S. B., Swahn, M., & Behrens, C. B. (2005). Measuring Violence-Related Attitudes, Behaviors, and Influences Among Youths: A Compendium of Assessment Tools (2nd ed., pp. 95–97). Centers for Disease Control and Prevention, National Center for Injury Prevention and Control. https://www.cdc.gov/violenceprevention/pdf/YV_Compendium.pdf
• Greenberg, M. T. (1994). Manual for the Seattle Personality Inventory-Revised: A self-report measure of child symptomatology (Unpublished manuscript). Department of Psychology, University of Washington, Seattle, WA.
• Greenberg, M. T., & Kusche, C. A. (1990). Manual for the Seattle Personality Questionnaire (Unpublished manuscript). Department of Psychology, University of Washington, Seattle, WA.
• Greenberg, M. T., Kusche, C. A., Cook, E. T., & Quamma, J. P. (1995). Promoting emotional competence in school-aged children: The effects of the PATHS curriculum. Development and Psychopathology, 7(1), 117–136. https://doi.org/10.1017/s0954579400006377

Items of the Scale