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    Interrater Reliability of Dichotomous Variables

    Disclaimer: Not psychological research, I know, but the type of statistics are more often used in psychology than in medicine, so I'm asking for help here. Background: I had 4 radiologists read CT scans of ~50 patients to assess whether a series of 'signs' were present or not. After a washout...
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    Intra- and Interrater reliability of imaging findings

    Hi everyone, I'm having some difficulty deciding how best to analyze the data from a project. I had 4 radiologist read CT scans looking for specific signs (mostly giving True/False answers) on two occasions separated by a washout period. The last two variables included a 'Questionable'...