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Related Concept Videos

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.
Cattell's 16 Personality Factors01:24

Cattell's 16 Personality Factors

Raymond Cattell's trait theory offers a structured framework for understanding personality by distinguishing between two critical traits: surface and source traits. Surface traits are observable patterns of behavior, such as indecisiveness, anxiety, and irrational fears. These traits are less stable, varying across situations and over time. This means that they are less helpful in understanding the deeper aspects of an individual's personality.
In contrast, source traits are the fundamental,...
Factorial Design02:01

Factorial Design

Factorial Analysis is an experimental design that applies Analysis of Variance (ANOVA) statistical procedures to examine a change in a dependent variable due to more than one independent variable, also known as factors. Changes in worker productivity can be reasoned, for example, to be influenced by salary and other conditions, such as skill level. One way to test this hypothesis is by categorizing salary into three levels (low, moderate, and high) and skills sets into two levels (entry level...
Theory of Attribution II: Kelley's Covariation Theory01:29

Theory of Attribution II: Kelley's Covariation Theory

Attribution theory plays a crucial role in social psychology, helping to explain how individuals interpret the causes of behavior. One prominent model within this field is Harold Kelley's covariation theory, which provides a systematic approach to determining whether internal traits or external circumstances drive a person's actions. The model posits that individuals rely on three key types of information—consensus, consistency, and distinctiveness—to make these judgments.Consensus: Comparing...
Reliability and Validity01:29

Reliability and Validity

Reliability and validity are two important considerations that must be made with any type of data collection. Reliability refers to the ability to consistently produce a given result. In the context of psychological research, this would mean that any instruments or tools used to collect data do so in consistent, reproducible ways.
Five-Factor Theory of Personality01:29

Five-Factor Theory of Personality

The five-factor model, often called the Big Five personality traits, is widely accepted in psychology as a comprehensive framework for understanding personality. These five traits — Openness, Conscientiousness, Extraversion, Agreeableness, and Neuroticism — are often remembered using the acronym OCEAN.
Openness reflects creativity, curiosity, and openness to new experiences. Individuals scoring high in openness are imaginative, have a wide range of interests, and are independent thinkers. Low...

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"Back to the Future": Testing the "Individual Problems and Strengths" Scale With a Stepwise Confirmatory Factor

Rune Zahl-Olsen1, Nicolay Gausel2, Åshild Tellefsen Håland1

  • 1Department of Child and Adolescent Mental Health, Sørlandet Hospital, Agder, Kristiansand, Norway.

Journal of Clinical Psychology
|June 5, 2026
PubMed
Summary
This summary is machine-generated.

Routine Outcome Monitoring requires valid and reliable scales. The Individual Problems and Strengths (IPS) scale shows construct validity but mixed reliability, suggesting developers refine its original 8-factor structure.

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Area of Science:

  • Psychological assessment
  • Clinical psychology
  • Psychometric evaluation

Background:

  • Routine Outcome Monitoring (ROM) systems are crucial for tracking therapeutic progress.
  • The effectiveness of ROM hinges on the construct validity and scale reliability of its instruments.
  • The Individual Problems and Strengths (IPS) scale is a key component of the Systemic Therapy Inventory of Change.

Purpose of the Study:

  • To conduct the first independent validation of the IPS scale's construct validity and scale reliability.
  • To assess the psychometric properties of the original 8-factor IPS model and its alternatives.
  • To provide evidence-based recommendations for the refinement of the IPS scale.

Main Methods:

  • Utilized a sample of 841 Norwegian clients undergoing therapy.
  • Employed a stepwise Confirmatory Factor Analysis (CFA) approach.
  • Evaluated the construct validity and scale reliability of the IPS scale.

Main Results:

  • Satisfactory support was found for the construct validity of the original 8-factor IPS model.
  • Scale reliability for the original 8-factor IPS model received poor to mixed support.
  • No support was found for alternative factorial structures of the IPS scale.

Conclusions:

  • The original 8-factor structure of the IPS scale demonstrates adequate construct validity.
  • Further refinement of the original 8-factor IPS structure is recommended, disregarding other proposed models.
  • Improving the scale reliability of the IPS is essential for its effective use in Routine Outcome Monitoring.