What informal measure could be used to assess RAN abilities?

The Color Naming task is particularly effective for assessing RAN (Rapid Automatized Naming) abilities because it involves quickly naming colors from a list or array. This task emphasizes speed and accuracy, both of which are critical elements of RAN. The ability to rapidly name colors requires fluent retrieval of the color names from memory, and the speed of this retrieval can be indicative of cognitive processing efficiency.

In contrast, the other options do not specifically target RAN capabilities. The Word Reversal Task might focus more on phonological processing than rapid naming. The Math Sequence Task is generally concerned with numerical processing and sequencing, which does not align directly with the naming aspect of RAN. The Sound Discrimination Test evaluates auditory processing rather than rapid naming skills. Thus, the Color Naming task is the most appropriate informal measure for assessing RAN abilities.