Reliability

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1. Inter-rater reliability

  • the results gathered from two observers who have observed the same participant , for the same behaviour
  • the same participant is given the same test at two different points in time
  • The test items for the same participant will be divided in half and the results from each half will be compared to see if theyre the same
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2. Split-Half

  • the same participant is given the same test at two different points in time
  • The test items for the same participant will be divided in half and the results from each half will be compared to see if theyre the same
  • results gathered from two observers who have observed the same participants , for the same behaviors.

3. Internal Validity

  • How consistently a measure measures something over the time
  • How consistent the study is within itself
  • how a participant responds to certain factors

4. Test-retest

  • the same participant is given the same test at two different points in time
  • the study is repeated on different participants to see if the same results can be found
  • the test items for the same participant will be divided in half and the results from each half will be compared to see if theyre the same
  • results gathered from two observers who have observed the same participants , for the same behaviors.

5. External Reliability

  • How consistently a measure measures something over a time e.g whether the study can be replicable and the same results found
  • How consistent the study is within itself

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