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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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Psychologists measure intelligence by using standardized tests that produce a score known as the intelligence quotient or IQ. To understand IQ tests, it's important to recognize the key principles behind their construction: validity, reliability, and standardization.
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The way a set of data is measured is called its level of measurement. Correct statistical procedures depend on a researcher being familiar with levels of measurement. For analysis, data are classified into four levels of measurement—nominal, ordinal, interval, and ratio.
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Biopharmaceutical studies constitute a vital field aiming to enhance drug delivery methods and refine therapeutic approaches, drawing upon diverse interdisciplinary knowledge. In research methodologies, the choice between controlled and non-controlled studies significantly influences the study's reliability and accuracy.
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Wechsler's Contribution to Measures of Intelligence01:23

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David Wechsler, a psychologist who worked with World War I veterans, developed a significant IQ test in 1939 called the Wechsler-Bellevue Intelligence Scale. This test was innovative because it combined several subtests that measured both verbal and nonverbal skills, reflecting Wechsler's belief that intelligence is a global capacity involving purposeful action, rational thinking, and effective interaction with the environment. This test later evolved into the Wechsler Adult Intelligence...
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The Mouse Stroke Unit Protocol with Standardized Neurological Scoring for Translational Mouse Stroke Studies
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Implementing a New Score Scale for the Clinical Science Subject Examinations: Validity and Practical Considerations.

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  • 1National Board of Medical Examiners, 3750 Market Street, Philadelphia, PA 19104 USA.

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|August 30, 2021
PubMed
Summary
This summary is machine-generated.

The National Board of Medical Examiners (NBME) transitioned from scaled scores to equated percent correct scores for its clinical science exams. This change enhances score validity and better serves medical education stakeholders.

Keywords:
AssessmentValidity

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Area of Science:

  • Medical Education
  • Psychometrics
  • Assessment Science

Background:

  • Historically, National Board of Medical Examiners (NBME) clinical science subject examinations used scaled scores.
  • These scaled scores presented validity concerns regarding score interpretation.
  • A need existed to improve score utility for medical faculty and students.

Purpose of the Study:

  • To evaluate the validity of implementing equated percent correct scores.
  • To address score validity concerns with the previous scaled score system.
  • To improve the alignment of examination scores with the needs of medical schools.

Main Methods:

  • Descriptive analysis of score properties.
  • Validity evidence review for the new scoring system.
  • Consideration of practical implementation factors.

Main Results:

  • Equated percent correct scores were introduced to replace scaled scores.
  • The new scoring system aims to enhance score validity.
  • Implementation addressed prior score interpretation issues.

Conclusions:

  • The shift to equated percent correct scores improves the validity of inferences from NBME clinical science examinations.
  • This change better supports the needs of medical school faculty and students.
  • The study details the validity and practical aspects of this scoring system transition.