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Validity and reliability testing of the transitional impact scale.

Tugba Uzer1

  • 1Department of Psychology, TED University, Ankara, Turkey.

Stress and Health : Journal of the International Society for the Investigation of Stress
|April 14, 2020
PubMed
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The Transitional Impact Scale (TIS) effectively measures life changes, showing strong validity and reliability in Turkish adults. This scale is a dependable tool for assessing psychological and material shifts during transitional events.

Keywords:
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Area of Science:

  • Psychology
  • Psychometrics
  • Sociology

Background:

  • Transitional events significantly impact individuals' lives.
  • Existing measures may not fully capture the multifaceted nature of these changes.
  • The Transitional Impact Scale (TIS) was developed to assess the quality and quantity of changes from transitional events.

Purpose of the Study:

  • To investigate the psychometric properties of the Transitional Impact Scale (TIS).
  • To evaluate the validity, internal consistency, and test-retest reliability of the TIS.
  • To confirm the proposed two-factor structure of the TIS in a Turkish sample.

Main Methods:

  • Study 1: Assessed validity and internal consistency with 445 participants using TIS, BAI, CES, IES-R, and PTGI.
  • Study 2: Assessed test-retest reliability with 140 university students over a 2-week interval.
  • Confirmatory factor analysis was used to test the two-factor structure.

Main Results:

  • The two-factor structure (material and psychological change) of the TIS was confirmed across diverse demographic groups.
  • The TIS demonstrated significant correlations with the Beck Anxiety Inventory (BAI), Centrality of Event Scale (CES), and Impact of Event Scale-Revised (IES-R).
  • The TIS exhibited high test-retest reliability.

Conclusions:

  • The TIS is a psychometrically sound instrument for measuring the impact of transitional events.
  • The findings support the TIS's utility in diverse populations, including Turkish samples.
  • The TIS is reliable and valid for assessing psychological and material changes associated with life transitions.