PMC:7795888 / 9578-9833 JSONTXT

{"project":"LitCovid-sentences","denotations":[{"id":"T58","span":{"begin":0,"end":255},"obj":"Sentence"}],"namespaces":[{"prefix":"_base","uri":"http://pubannotation.org/ontology/tao.owl#"}],"text":"Power analysis suggested that an aprioristic sample size of N = 500 would detect with a probability ≥ 0.9 a minimally interesting effect size of δ = 0.2, assuming a two-sided criterion for detection that allows for a maximum Type I error rate of α = 0.05."}