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Key Concepts and Theories of Research

Reliability, standardisation and replication

  • 3 things to know
  • Component 2

Overview

Inter-observer reliability and test-retest reliability.

What you need to know

Answer each one before you reveal it.

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Key term

How is the reliability of a research method assessed?

Key term

What does reliability mean in sociological research?

Key term

Why is reliability not the same as accuracy?

Questions from this subtopic

Each one with the model answer underneath.

  1. 1

    What does reliability mean in sociological research?

    Model answer

    Reliability is the extent to which a method produces the same results when repeated. A reliable instrument can be picked up and used by anybody.

  2. 2

    Why is reliability not the same as accuracy?

    Model answer

    A method can produce the same wrong answer every single time. Consistency guarantees repeatability rather than truth.

  3. 3

    What is replication?

    Model answer

    Replication is repeating a study by the same method to see whether the findings hold. Confidence in a result grows when it survives replication.

  4. 4

    Why is standardisation the key to reliability?

    Model answer

    Standardisation keeps wording, order, procedure and conditions identical for every case. Differences in the results can then be attributed to the respondents.

  5. 5

    Which methods score highest on reliability?

    Model answer

    Questionnaires, structured interviews and structured observation score highest because their procedures are fixed. Official statistics gathered on a constant basis also score well.

  6. 6

    Why does participant observation score badly on reliability?

    Model answer

    Participant observation rests on one researcher's judgement in circumstances that will never recur. The method supplies no schedule for another observer to follow.

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