Percentile Ranks
Percentile ranks describe a student's relative standing in a comparison group on a scale of 1 to 99. The student's percentile rank indicates the percentage of students from the comparison group who had scores the same of lower than the student's score. A student's percentile rank of 68 indicates that 68% of the comparison group had scores the same or lower than the student's score. The table below provides the classification of standard scores and percentile ranks of the WJIII DRB.
|
Standard Score Range |
Percentile Rank Range |
WJIII Classification |
|
131 and above |
98 to 99.9 |
Very Superior |
|
121 to 130 |
92 to 97 |
Superior |
|
111 to 120 |
76 to 91 |
High Average |
|
90 to 110 |
25 to 75 |
Average |
|
80 to 89 |
9 to 24 |
Low Average |
|
70 to 79 |
3 to 8 |
Low |
|
69 and below |
0.1 to 2 |
Very Low |