Reliability in Psychology (Research Methods)

Reliability - Consistentcy

Reliability - It represent the extent we can depend upon a measure and the ability of the test to produce consistent findings. A reliable test should be carried out in the same circumstances with the same ppts and it should give the same results. 

• Internal Validity - Truth
  • How costistent the test is itself - different part of the test should give consistent results
  • Consistency across measures in the same test
  • Split- Half Method
  • The test is split into half and the results from the two halves should produce a high positive correlation

• External Validity - Generalisability
  • Ability to replicate a study on other ocassions - producing consistent results whenever…