reliability

Examples of reliability in the following topics:

• Validity and Reliability of Personality Assessments

  • When it comes to examining the validity and reliability of personality measures, some have better psychometric properties than others.
  • Reliability scales test the instrument’s consistency over time, assuring that if you take the MMPI today and then again five years later, your two scores will be similar.
  • The result is that the Eysenck Personality Questionnaire has excellent reliability and validity.
  • This is one reason why horoscopes continue to be popular and trusted despite their lack of reliability or validity.
  • Evaluate the concepts of validity and reliability in the context of personality assessment

• Surveys and Interviews

  • In particular, a researcher should be concerned with the reliability of their survey.
  • A survey is said to have high reliability if it produces similar results each time.
  • However, for a survey to be useful, it needs to be not only reliable, but valid.
  • It is important to note that a survey can be reliable, but not valid (and vise versa).
  • In this case, our emotion survey is reliable, but not necessarily valid.

• Biases in Experimental Design: Validity, Reliability, and Other Issues

  • Another important issue to consider when collecting data is reliability.
  • Reliability refers to the overall consistency of a measure.
  • If a measure is not reliable, it will produce different results, even under the same conditions.
  • If one day the scale shows that you weigh 150 lbs yet the next day it shows you 170 lbs, it may be time to shop for a more reliable scale.
  • This would indicate the measure's ability to produce consistent results under similar conditions: the measure would be considered reliable.

• The Psychology of Recruiting and Selecting Employees

  • In this way, structured interviews provide more reliable results than unstructured interviews.
  • The reliability of a measure refers to whether the measure gets repeatable results.
  • If their processes get good results every time, those measures can be said to be reliable.
  • Structured interviews provide more reliable and consistent scoring results than unstructured interviews.

• Overview of Personality Assessment

  • The MBTI is one of the most popular personality inventories used with nonclinical populations; it has been criticized, however, for its lack of statistical validity and low reliability.
  • The advantage of projective measures is that they purportedly expose certain aspects of personality that are impossible to measure by means of an objective test; for instance, they are more reliable at uncovering unconscious personality traits or features.
  • However, they are criticized for having poor reliability and validity, lacking scientific evidence, and relying too much on the subjective judgment of a clinician.

• IQ Tests

  • Normal distributions are special, because their data follows a specific, reliable pattern.
  • IQ tests are a type of psychometric (person-centric) testing thought to have very high statistical reliability.

• Group Differences in Intelligence

  • It was not until Alfred Binet and the emergence of the IQ test that psychologists were able to collect data that could accurately and reliably compare human groups .
  • Since the advent of reliable and valid IQ testing methods, psychologists have demonstrated, and the APA has declared, that differences in group intelligence are undeniable.

• Evaluating the Biological Perspective on Personality

  • All factors are reduced to quantifiable variables that can be reliably measured by personality trait models and questionnaires.

• Considerations for Eyewitness Testimony

  • Eyewitness testimony has been considered a credible source in the past, but its reliability has recently come into question.
  • Studies investigating this effect have shown that a person is better able to recognize faces that match their own race but are less reliable at identifying other races, thus inhibiting encoding. 

• Classifying Abnormal Behavior: The DSM

  • The revisions of the DSM from the 3rd edition forward have been mainly concerned with diagnostic reliability—the degree to which different diagnosticians agree on a diagnosis.