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Indices of Psychopathology

Mark A. Blais, PsyD, and Samuel Justin Sinclair, PhD

Measures psychopathology quickly
Paper and pencil, Online administration and scoring via PARiConnect, E-Manual
Age range:
18 years and older
15–20 minutes
Qualification level:
All qualifications for Level B plus an advanced professional degree that provides appropriate training in the administration and interpretation of psychological tests, or license or certification from an agency that requires appropriate training and experience in the ethical and competent use of psychological tests. Close

Measure 12 Clinically Important Constructs in Adult Psychology


The SPECTRA provides a quick hierarchical assessment of adult psychopathology. It can be used to evaluate individuals in a variety of clinical settings, such as inpatient and outpatient clinics, hospitals, schools, and forensic settings.


Features and benefits

  • Measures 12 clinically important constructs (depression, anxiety, social anxiety, post-traumatic stress, alcohol problems, severe aggression, antisocial behavior, drug problems, psychosis, paranoid ideation, manic activation, and grandiose ideation).
  • Constructs are organized into three higher-order psychopathology spectra (Internalizing, Externalizing, and Reality-Impairing).
  • These spectra scores combine to provide a General Psychopathology Index (GPI).
  • Maps on to DSM-5 conditions and links assessment findings to quantitative model research literature.
  • Learn about the development of the SPECTRA with authors Dr. Justin Sinclair and Dr. Mark Blais during an interview with Dr. Jeremy Sharp on The Testing Psychologist podcast and in our blog!
  • Learn about how the SPECTRA provides a hierarchical–dimensional assessment of psychopathology with our free hierarchical interpretation worksheet.