Evaluating the effect of lag schedule of reinforcement and progressive-time delay in increasing varied augmented requesting

Request training can produce highly repetitive requests unless the setting is organized to encourage request diversity, particularly for individuals who depend on speech-generating devices (SGDs). Previous studies have shown that request training utilizing a lag schedule and progressive-time delay led to an increase in variability among children diagnosed with autism spectrum disorder (ASD). The impact of lag schedules on augmented requesting remains to be seen. Hence, the present research aimed to examine the effect of a lag schedule of reinforcement in conjunction with progressive-time delay on enhancing the frequency of variant augmented requests in three children with ASD. Additionally, the study assessed the participants' ability to apply the acquired skills to different situations (such as preferred objects and daily routines) and sustain the desired behavior. The initial findings indicated that the intervention effectively boosted varied augmented requests, mainly when using a thinner schedule of reinforcements. The paper concludes by discussing the clinical significance, constraints, and potential paths for future investigation.