This question represents a situation that is highly improbable from a theoretical perspective, because the error of using the wrong lace is unlikely to be made by a person capable of making 3 correct single cordovan stitches independently. The task demands of the single cordovan stitch include attention to/consideration of all the available visible cues, and the ability to flexibly adjust actions to produce better effects while considering secondary effects of their actions. In this scenario, the whipstitch lace would be crossing the back of the leather and clearly visible to the person who presumably would be looking on the back (this ability is established by mode 4.6). If this cue were ignored for some reason, there would also be the unused lace immediately adjacent to the completed stitches which would have to be ignored by the person to make this serious error. If for some reason the person were not aware of these two striking visible errors, the administrator should (after allowing the person time to find this error) offer a verbal prompt “Would you like some help?” and then provide one verbal cue that directs the person’s attention to the problem area such as “How does the back look?” However unlikely, atypical performances do occur and need to be explained if possible by further questioning and observation, in this case: Is the person making the error on purpose? Did the person experience a temporary lapse of attention or confusion?