Description

The Seattle Personality Questionnaire (SPQ) is presented in the available source as a psychometric instrument intended to assess different dimensions of personality. However, the source itself explicitly states that widely published information about a specific instrument with this name is not available and that the description is hypothetical, based on the structure and aims of similar personality measures.

For this reason, the information concerning its structure, dimensions, and scoring should be treated as a general theoretical framework rather than as confirmed characteristics of an established SPQ instrument.

Aim

According to the available material, the main aim of the SPQ is to provide a multidimensional assessment of personality, covering characteristics such as emotional stability, extraversion, openness to experience, agreeableness, and conscientiousness.

The assessment is proposed as a way to improve understanding of individual differences and, theoretically, could be applied in clinical, educational, or occupational settings.

Main Dimensions

The source describes five possible dimensions that essentially correspond to the Big Five personality model:

Emotional Stability: assesses the individual’s ability to manage stress and emotional challenges.

Extraversion: evaluates the tendency toward social interaction, activity, and outgoing behavior.

Openness to Experience: examines preference for new experiences, imagination, and intellectual curiosity.

Agreeableness: reflects tendencies toward cooperation, trust, and altruism.

Conscientiousness: assesses organization, diligence, responsibility, and self-discipline.

Data Analysis and Use

According to the source, the SPQ would consist of statements or questions rated using a Likert-type response scale, ranging from “Strongly Disagree” to “Strongly Agree.”

Responses could be analyzed separately for each personality dimension in order to develop a multidimensional profile of the individual.

Analysis could also include descriptive statistics, examination of the factor structure, and investigation of relationships between personality dimensions and other psychological or behavioral variables.

Scoring

The available material states that responses are coded and summarized to produce separate scores for each personality dimension. These scores could theoretically be compared with population norms in order to develop a personality profile.

However, because the source itself describes the SPQ framework as hypothetical, no official scoring system, confirmed number of items, normative values, or validated subscale structure is documented.

For scientific or clinical use, the existence and formal psychometric documentation of the specific SPQ version would therefore need to be confirmed first.

Psychometric Evaluation

If an instrument with this proposed structure were used or developed, its psychometric evaluation should include:

Internal Consistency: the degree to which items within each dimension measure the same underlying construct.

Test-Retest Reliability: the stability of scores over time.

Factorial Validity: whether the observed data support the theoretically proposed dimensions.

Convergent and Discriminant Validity: whether scores show appropriate relationships with established personality measures and with theoretically distinct constructs.

Applications

At a theoretical level, such an instrument could be used in personality research, counseling, educational psychology, and organizational research.

It could also support the examination of individual differences and the investigation of relationships between personality traits and behavioral, educational, or occupational variables.

However, before practical application, the scientific origin and psychometric documentation of the specific instrument should be verified.

References

Costa, P. T., & McCrae, R. R. (1992). Revised NEO Personality Inventory (NEO-PI-R) and NEO Five-Factor Inventory (NEO-FFI) Professional Manual. Psychological Assessment Resources.

John, O. P., & Srivastava, S. (1999). The Big Five trait taxonomy: History, measurement, and theoretical perspectives. In L. A. Pervin & O. P. John (Eds.), Handbook of Personality: Theory and Research (pp. 102–138). Guilford Press.

Goldberg, L. R. (1992). The development of markers for the Big-Five factor structure. Psychological Assessment, 4(1), 26–42.

Derogatis, L. R. (1994). SCL-90-R: Symptom Checklist-90-R: Administration, Scoring, and Procedures Manual. NCS Pearson.