1996
DOI: 10.2307/2533057
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Exact t and F Tests for Analyzing Studies with Multiple Endpoints

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Cited by 152 publications
(121 citation statements)
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“…To this end, λCSF, grey matter T2, and grey matter ADC MRI outcomes were combined per region, since all these measures are substantially affected by changes in water content. For each region, the global null hypothesis stating that no differences exist within that region between the group with less than 20 SGTCS, and the group with more than 20 SGTCS of the included MRI modalities was tested using the ordinary least squares test of O-Brien and Läuter (Läuter, 1996;O'Brien, 1984 …”
Section: Discussionmentioning
confidence: 99%
“…To this end, λCSF, grey matter T2, and grey matter ADC MRI outcomes were combined per region, since all these measures are substantially affected by changes in water content. For each region, the global null hypothesis stating that no differences exist within that region between the group with less than 20 SGTCS, and the group with more than 20 SGTCS of the included MRI modalities was tested using the ordinary least squares test of O-Brien and Läuter (Läuter, 1996;O'Brien, 1984 …”
Section: Discussionmentioning
confidence: 99%
“…27 For each cluster, a global null hypothesis stating that all differences of the included test scores are 0 was tested using the ordinary least squares (OLS) test. 28,29 For the 8 resulting 1-tailed P values, a Bonferroni correction for the significance level was applied. In addition, the means of the neurocognitive test scoresamongthesoccerplayerswereanalyzed.…”
Section: Chronic Traumatic Brain Injury In Soccermentioning
confidence: 99%
“…As both QC R1 and QC S0 represent contrast agent presence, QC R1 and QC S0 were combined to a summary value according to O'Brien and Läuter (30,31), which is more sensitive to contrast effects than the individual measures. Therefore, QC R1 and QC S0 were first standardized by z = [QC À mean(QC)/sd(QC)].…”
mentioning
confidence: 99%