2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/142819In this paper we derive the moderate deviation principle for stationary sequences of bounded random variables under martingale-type conditions. Applications to functions of $ϕ$-mixing sequences, contracting Markov chains, expanding maps of the interval, and symmetric random walks on the circle are given.ProbabilityStatistics Theory60F10, 60G10text