Palo Alto Social Background Inventory (PASBI)

Abstract

The Palo Alto Social Background Inventory (PASBI), developed by Ullmann and Giovannoni in 1964, is a 24-item, True-False psychological scale. It was specifically designed to assess reactive responses in individuals diagnosed with schizophrenia. The PASBI operationalizes the process-reactive continuum by evaluating past social functioning and current psychiatric symptoms. The items were originally selected from a larger 77-item instrument utilized in predicting patient outcomes, particularly post-hospital visits following treatment for schizophrenia. Although the PASBI demonstrates adequate reliability for research applications, it is not recommended for individual clinical case assessment.

Keywords

Palo Alto Social Background Inventory, PASBI, Schizophrenia, Process-Reactive Continuum, Self-Report, Test Development, Schizophrenic Reaction, Social Functioning, Measurement, Process Schizophrenia

Authors

The Palo Alto Social Background Inventory was authored by Ullmann, Leonard P. and Giovannoni, Jeanne M., with the initial publication detailing its development appearing in 1964.

Purpose

The primary purpose of the PASBI is to quantitatively assess and differentiate reactive responses among patients diagnosed with schizophrenia. This assessment helps researchers classify patients along the historical process-reactive continuum framework.

The scale was developed to provide a standardized, self-report measure capable of capturing historical social and behavioral indicators, which are believed to reflect the severity and prognosis of the schizophrenic illness.

Construct

The PASBI measures the process-reactive continuum, a historical diagnostic framework used to classify schizophrenia based on onset, premorbid adjustment, and course. Process schizophrenia typically implies a poor premorbid history, insidious onset, and poor prognosis, while reactive schizophrenia suggests good premorbid adjustment, acute onset, and better prognosis.

The inventory uses self-reported items related to social functioning and psychiatric symptoms to place the patient on this dimension, thereby serving as a valuable tool for research into the etiology and outcomes associated with different presentations of the disorder.

Validity

Specific details concerning the formal establishment of validity for the Palo Alto Social Background Inventory were not explicitly documented in the available source material. However, its development was rooted in items previously used to successfully predict post-hospital outcomes, suggesting an implicit level of predictive validity relevant to rehabilitation and prognosis.

Researchers utilizing the PASBI should consult subsequent literature that may have established empirical validity data, such as concurrent or construct validity, in studies published after the original 1964 publication.

Reliability

While the original source notes that the scale exhibits adequate reliability for research purposes, it does not specify the type of reliability coefficient (e.g., test-retest or internal consistency) achieved. The authors caution against using the PASBI for high-stakes individual case application, implying that while group-level statistics are stable, the reliability may not be sufficient for clinical decision-making regarding a single patient.

Factor Analysis

No formal factor analysis results were indicated in the foundational documents detailing the development of the Palo Alto Social Background Inventory. The scale appears to function as a unitary measure of the process-reactive continuum rather than a multi-factorial instrument.

Instrument

Test Type: Inventory/Questionnaire (Self-Report)

Format: The PASBI is a 24-item instrument scored using a True/False scale format.

Language Available: English

Population Group: Human; Specifically Male patients

Age Group: Adulthood (18 years and older)

Population Details: The scale was developed and tested in the United States using a sample of patients with Schizophrenia.

Test Methodology: The administration method is Paper-based, requiring patients to respond to self-report statements regarding their social background and current status.

Keywords

Test Construction, Mental Health Assessment, Psychiatric Symptoms, Self-Report Inventory, Ullmann and Giovannoni, Process-Reactive, Adult Population, Social Background

Authors

Author ORCID Identifier: Not provided in source content.

Affiliation Email addresses: Not provided in source content.

Correspondence Address: Not provided in source content. Contacting the institutions associated with the authors during 1964 may yield further information.

Permissions & Fee and Test Year

The Palo Alto Social Background Inventory was developed in 1964. The scale is reported as non-commercial and carries no stated fee for usage, though permissions for use in research should be sought through the original authors or copyright holders.

Test items are generally not available publicly, and interested researchers must contact the original authors or publishers to obtain the full set of 24 items for administration.

Reference’s

The foundational research paper describing the development and initial validation of the PASBI is:

• Ullmann, L. P., & Giovannoni, J. M. (1964). The development of a self-report measure of the process-reactive continuum. Journal of Nervous and Mental Disease, 138(1), 38–41. The DOI for this publication is: https://doi.org/10.1097/00005053-196401000-00005

Items of the Palo Alto Social Background Inventory (PASBI)

IMPORTANT: The following scale items must be preserved in their original language and must not be changed in any way.

• When I leave the hospital, I will live with my wife
• In my teens, I had more than two dates with more than one girl