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Related Concept Videos

Surveys02:16

Surveys

Often, psychologists develop surveys as a means of gathering data. Surveys are lists of questions to be answered by research participants, and can be delivered as paper-and-pencil questionnaires, administered electronically, or conducted verbally. Generally, the survey itself can be completed in a short time, and the ease of administering a survey makes it easy to collect data from a large number of people.
Self-Report Tests of Personality01:22

Self-Report Tests of Personality

Self-report inventories are objective personality assessments that use multiple-choice items or numbered scales, typically ranging from 1 (strongly disagree) to 5 (strongly agree). They are often called Likert scales after Rensis Likert. These inventories are widely used due to their ease of administration and cost-effectiveness. One of the most prominent examples is the Minnesota Multiphasic Personality Inventory (MMPI), initially developed in the 1940s to assess abnormal personality traits.

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Can we combine symptom scales for collaborative research projects?

John P Lyne1, Anthony Kinsella, Brian O'Donoghue

  • 1DETECT Services, Avila House, Block 5 Blackrock Business Park, Co. Dublin, Ireland. johnlyne@mail.com

Journal of Psychiatric Research
|November 8, 2011
PubMed
Summary

Collaborative research on schizophrenia symptoms can combine data from the Scale for Assessment of Positive Symptoms (SAPS), Scale for Assessment of Negative Symptoms (SANS), and Positive and Negative Symptom Scale (PANSS). This review explores methods for merging these highly correlated, yet clinically distinct, symptom scales.

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Area of Science:

  • Psychiatry and Behavioral Sciences
  • Clinical Psychology
  • Neuroscience

Background:

  • Collaborative research is crucial for addressing complex research questions in schizophrenia and other psychotic disorders, often requiring substantial resources.
  • Several validated scales, including the Scale for Assessment of Positive Symptoms (SAPS), Scale for Assessment of Negative Symptoms (SANS), Positive and Negative Symptom Scale (PANSS), and Brief Psychiatric Rating Scale (BPRS), are used to measure psychotic symptoms.
  • Merging data from different scales is essential for maximizing the impact of high-quality research efforts in schizophrenia.

Purpose of the Study:

  • To review the correlations between commonly used scales for measuring psychotic symptoms: SAPS, SANS, and PANSS.
  • To identify potential clinical differences between these scales despite high correlations.
  • To discuss methodologies for combining data from these scales in collaborative schizophrenia research.

Main Methods:

  • Systematic review of published studies examining the correlations between SAPS, SANS, and PANSS.
  • Comparative analysis of the clinical utility and measurement properties of the three scales.
  • Exploration of data harmonization techniques for multi-site or multi-scale research in schizophrenia.

Main Results:

  • SAPS, SANS, and PANSS demonstrate high correlations in published research, indicating significant overlap in the symptoms they capture.
  • Despite high correlations, considerable clinical differences exist between the scales, suggesting unique contributions and potential limitations of each.
  • The review highlights the feasibility and necessity of developing methods to integrate data from these scales.

Conclusions:

  • Combining data from SAPS, SANS, and PANSS is achievable and beneficial for collaborative schizophrenia research.
  • Standardized remission criteria for schizophrenia offer a potential framework for harmonizing data across different scales.
  • Further development of data integration methods will enhance the power and generalizability of findings in psychotic disorder research.