Four interexaminer and one intraexaminer agreement studies were performed on specific diagnostic tests commonly employed within sacro-occipital technique (SOT). Ten of the tests were evaluated in more than one interexaminer study. Of these, only one test (bilateral supine leg raise with cervical compaction) had at least fair reliability more than once. Six of these 10 tests obtained poor agreement in more than one study. One examiner out of two had a number of excellent and fair intraexaminer values, whereas the other examiner generally had poor results. There may have been some treatment effect as a comparison of the combined intraexaminer diagnosis for two observers after no treatment and after treatment showed that the repeatability diminished from Kappa of 0.36 in untreated cases (which were expected to have high agreement of before and after treatment findings) to a Kappa of 0.27 for those subjects having received treatment (which were expected to have low agreement of before and after treatment findings). It appears unlikely that SOT tests can be reproduced to a sufficiently high degree to constitute useful clinical procedures.
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