Problem: How are speech sound targets selected? There are different target selection approaches, which can be broadly categorized as phonetic (articulatory) or phonemic (phonological). The phonetic approach is the traditional approach that is based on phonetic factors, including developmental norms, stimulability, and consistency of error. This approach assumes there is a motoric basis of sound learning, an ease of acquisition that follows a sequential order of acquisition. Targets that are early developing, stimulable, and produced correctly in at least some positions are prioritized since they are assumed to be easier for the child to learn. The goal is sound accuracy and ease of learning. Conversely, the phonological approach can be informed by various factors such as systemic factors (e.g., the function of a sound within a given child's sound system), and linguistic factors (e.g., implicational laws and the relationship between marked and unmarked properties in a phonological system with marked or more complex properties implying the existence of unmarked properties) Two phonological target selection approaches are the complexity approach (cf., Gierut, 2001; Storkel, 2018) and the distance metric approach (Williams, 2005, 2010). The goal of both of these approaches is to induce system-wide change in order to achieve the greatest amount of change in the least amount of time. Need Assignment Help?