The term verbal IQ refers to the combined scores of the verbal components of standardized achievement tests.
These verbal components include vocabulary, identifying parts of speech, recognizing synonyms and antonyms, punctuation use, reading comprehension, etc. as is appropriate to the students age/grade placement. This measures a subject's deviation from the average scores for their age and education. As with full-scale IQ scores 100 is considered to be average, with each 15 points above or below that average constituting one standard deviation.