A comparison of several goodness-of-fit statistics

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A comparison of several goodness-of-fit statistics

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1985

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A study was conducted to evaluate four goodness-of- fit procedures using data simulation techniques. The procedures were evaluated using data generated according to three different item response theory models and a factor analytic model. Three different distributions of ability were used, as were three different sample sizes. It was concluded that the likelihood ratio chi-square procedure yielded the fewest erroneous rejections of the hypothesis of fit, whereas Bock’s chi-square procedure yielded the fewest erroneous acceptances of fit. It was found that sample sizes somewhere between 500 and 1,000 were best. Shifts in the mean of the ability distribution were found to cause minor fluctuations, but they did not appear to be a major issue.

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McKinley, Robert L & Mills, Craig N. (1985). A comparison of several goodness-of-fit statistics. Applied Psychological Measurement, 9, 49-57. doi:10.1177/014662168500900105

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McKinley, Robert L.; Mills, Craig N.. (1985). A comparison of several goodness-of-fit statistics. Retrieved from the University Digital Conservancy, https://hdl.handle.net/11299/102021.

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