The TIWRE, from Authors Cecil R. Reynolds and Randy W.Kamphaus, is designed to be an efficient, effective and repeatable assessment of reading skill through the use of phonically irregular words( i.e. words that do not conform to the rules of phonics). Its three forms each consists of 50 items and were equated carefully based on a common standardisation sample.
The TIWRE can be administered to individuals between the ages of 3 and 94. Testing time is approximately two minutes for each form.
The TIWRE’s three equivalent forms offer the opportunity to monitor changes in reading performance over relatively short periods of time. with no detectable practice effects from testing. This makes the TIWRE ideal for monitoring treatment progress.