The frequency of correct responses to individual questions on the preintervention and postintervention questionnaire was compared using χ2 (or Fisher exact test when expected frequencies were small). (pediatrics.aappublications.org)
This resource includes the definition and formula of both relative and expected frequency at the top of it. (tes.com)
Observed and expected frequencies of change talk, transitional probabilities and their significance levels both immediately following therapists» statements (Lag 1), and after a delay (Lag 2) were calculated using the Generalised Sequential Querier (GSEQ) programme. (academic.oup.com)