A product of nearly three decades of research by Dr. Michael Lambert, the OQ®-45.2 is the most peer-reviewed patient-reported outcome measure in the world and has been the subject of 16+ clinical trials worldwide – 4x more researched than the closest competitor. Designed for ongoing measurement of client progress throughout therapy and following termination, the OQ®-45.2 is the adult outcome measure of choice by the Canadian government, and one of America’s largest health care systems, as well as an entire branch of the U.S. Armed Services.
The OQ®-45.2’s utility across many populations, treatment types, and modalities allows for non-invasive clinical application in most settings of care. Research-based patient-reported outcomes measures (PROMs) are an absolutely critical feature to any legitimate outcome measure, and the OQ®-45.2 not only has PROMs, but it is a highly sensitive instrument with strong reliability and validity, making the instrument widely considered the gold standard adult outcome assessment across the global psychology research community. The OQ®-45.2 is also a recommended outcome measure by The Joint Commission.



The OQ®-45.2 measures three subscales:

You can use the subscale scores to identify and target particularly problematic areas as a focus of treatment. These three areas of functioning suggest a continuum covering how the person feels inside, how he or she is getting along with significant others, and how he or she is doing in important life tasks, such as work and school.

  • Symptom Distress (or subjective discomfort; intrapsychic functioning with an emphasis on depression and anxiety)
  • Interpersonal Relations (loneliness, conflict with others and marriage and family difficulties)
  • Social Role (difficulties in the workplace, school or home duties)
OQ®-45.2 Critical Items:

Examination of five critical items allows clinicians to screen for suicidal ideation, substance abuse, and anger and violence at work and school.


Risk assessment: The OQ®-45.2 contains risk assessment items for suicide potential, substance abuse and potential violence at work or school.

Standardized data: The OQ®-45.2 is a standardized instrument with extensive empirical support based on normative data and is a recommended outcome measure by The Joint Commission.

Content that assesses functional level and change over time: The OQ®-45.2 measures functioning in 3 domains, enabling clinicians to assess functional level and change over time – Symptom Distress (heavily loaded for depression and anxiety), Interpersonal Functioning, and Social Role.

The OQ®-45.2 is available in English, Spanish, Spanish (Chilean), Spanish (Colombian), French (Canadian), French (European), Arabic, Armenian, Bosnian, Cambodian, Chinese Simplified, Chinese Traditional, Danish, Dari, Dutch, Farsi, Finnish, Frysk, German, Hebrew, Hungarian, Italian, Japanese, Korean, Lithuanian, Norwegian, Philippines, Polish, Portuguese (Brazilian), Portuguese (European), Punjabi, Romanian, Russian, Slovak, Slovene, Somali, Swedish, Tagalog, Taiwanese, Thai, Turkish, Ukrainian, Vietnamese and Visually Impaired.

Please contact us for an at-cost quote for any languages not listed here that you may need, and we can have it translated for you in about 10 business days.

The OQ®-45.2 measures adult patient progress in therapy, and is designed to be repeatedly administered during the course of treatment and at termination. Patient progress is measured along several important dimensions:

1) Subjective discomfort (intrapsychic functioning),

2) Interpersonal relationships, and

3) Social role performance.

In addition, the OQ®was designed to be used as a baseline-screening instrument to apply to gross treatment assignment decisions and for treatment planning. The OQ®-45.2 is conceptualized as having three levels of usage:The OQ®-45.2 is conceptualized as having three levels of usage:

1) To measure current level of distress,

2) As an outcome measure to be administered prior to and following treatment interventions, or to monitor ongoing treatment response, and

3) To accompany computerized decision support tools to improve the quality of patient care.

The OQ®-45.2 was designed to address limitations of other outcome measures.  Specifically, the OQ®-45.2 is available at a low cost, is sensitive to change over short periods of time, and is quickly administered. Most importantly, however, the OQ®-45.2 maintains high levels of reliability and validity, and was also designed to assess common symptoms across a wide range of adult mental disorders and syndromes, including stress-related illnesses and V codes.

Schedule a demonstration now to see how treatment planning will be easier for you when you use the web-based version of the OQ®-45.2 in the OQ®-Analyst.

The OQ®-45.2 is considered one instrument, and pricing for use of this instrument depends on the type of license you need.

Please contact sales@oqmeasures.com to request a personalized quote for your customized needs, or you may Contact Us to Buy A License