title: The Equity Perception Scale - Intellectual Disability Services (EPS-IDS): evaluating the reliability and validity of a new measure.
abstract: BACKGROUND
  The aim of this paper was to evaluate the reliability and validity of the Equity Perception Scale - Intellectual Disability Services (EPS-IDS), a detailed measure of staff equity perceptions in services for people with intellectual disability (ID). The EPS-IDS contains 3 relationship indices that assess staff relationships with their employing organisation, their co-workers, and service users.
  
  
  METHODS
  Postal questionnaires were used to collect quantitative data from a purposive sample of ID service staff.
  
  
  RESULTS
  The EPS-IDS was found to have good internal consistency reliability. The overall test-retest reliability of the measure, however, was found to be less satisfactory. With the exception of the co-worker relationship index, the EPS-IDS indices were found to have promising validity.
  
  
  CONCLUSIONS
  The findings from the study suggest that the EPS-IDS shows some promise as a measure of the equity perceptions of ID service staff. Further refinements to the relationship indices, however, may be required.
authors.affiliation: Lancaster University , UK.
authors.forename: Philip
authors.initials: P
authors.lastname: Disley
authors.forename: Chris
authors.initials: C
authors.lastname: Hatton
authors.forename: Dave
authors.initials: D
authors.lastname: Dagnan
mesh_terms: D000328:Adult; D003861:Depersonalization / Q000523:psychology; D005260:Female; D006801:Humans; D008607:Intellectual Disability / Q000523:psychology*; D033182:Intention; D007588:Job Satisfaction; D008297:Male; D010465:Perception; D010559:Personnel Management; D011237:Predictive Value of Tests; D015203:Reproducibility of Results; D012928:Social Desirability; D011795:Surveys and Questionnaires