Going over my DS's report I realized that only 7 out of the 10 sub-tests were used to compute his FSIQ. Is that typical? The three sub-tests that were omitted were significantly higher than those that were used. For example, PSI: coding, score 11 (63%), was used; symbol search, score 17 (99%), was not. WMI: digit span 10 (50%) used; picture span 15 (95%), not used. On VSI visual puzzles was also omitted but the difference between that and block design was only 2 point. Is it typical to omit these sub-tests? If so why specifically these? It certainly did not work to my DSs advantage...
Also, should I worry about these big differences in PSI and WMI sub-test scores?