The Castles and Coltheart Test 2 (CC2) assesses the functioning of the key processes in single word reading: sounding-out ability and whole word recognition ability. 
Sounding-out ability involves converting printed letters into their corresponding sounds, and is assessed by accuracy in reading aloud nonwords (nonsense words), such as /gop/. Whole word recognition ability involves accessing stored knowledge about familiar words, and is assessed by accuracy in reading aloud irregular words, such as /yacht/, which cannot be read correctly via sounding-out rules. Also included are regular words, such as /cat/, which can be read correctly via either sounding-out or whole word recognition processes. The full test consists of 40 regular words, 40 irregular words and 40 nonwords, which are presented one-at-a-time, in mixed order, and with gradually increasing difficulty. A stopping rule is applied separately for each item type, with presentation discontinuing after five consecutive items are read incorrectly.
The test has been normed on over 1000 Australian children aged from 6 years 0 months to 11 years 6 months. 
It is available to purchase as a ready-to-go CC2 test kit which includes all test materials in a durable carry case.The Castles and Coltheart Test 2 (CC2) assesses the functioning of the key processes in single word reading: sounding-out ability and whole word recognition ability. 

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