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28 April, 17:45

Two observers collected frequency data for 10 two-minute intervals. They agreed on 8 of the intervals. What is the percentage of inter-rater reliability?

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  1. 28 April, 21:28
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    The percentage of inter-rater reliability is 80%.

    Step-by-step explanation:

    The rate of inter-rater reliability is the division of the number of intervals in which they agreed number of total intervals.

    In this problem, we have that:

    There are 10 intervals.

    The observers agreed on 8 of them.

    So the rate of agreement is 8/10 = 0.8.

    As a percentage, we multiply the rate by 100, so 0.8*100 = 80%.

    The percentage of inter-rater reliability is 80%.
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