This workshop will address best practices for administering informal assessment measures of receptive language, expressive language, pragmatic language as well as articulation and phonology skills. We will discuss approaches to diagnostic decisions when informal measures are not consistent with formal measures, including the use of dynamic assessment techniques. We will discuss the practical elements of designing and implementing informal measures as well as ways to analyze the results gained from informal measures. We will consider the impact of cultural and linguistic diversity in the testing process and the use of these measures in both face-to-face and remote formats.