| | Family Health | Senior Health Is 89 good on an IQ test for age 16? The average IQ score for a 16-year-old is between 90-110. An IQ score of 89 is considered to be in the low average range. Senior Health - Related Articles How to Use a Stocking Aid How old is the oldest living person with spina bifida? Senior Activities in the Dayton, Ohio Area ADL Skills for Older People How to Check for Memory Loss Types of In-Home Care for Elderly How to Select Walkers