1. A method comprising testing a population of different ages on an alphabetical test comprising reading a sentence, wherein data for said alphabetical test is stored on a storage medium, retrieving said data for said alphabetical test by a processor and determining a reading fluency starting age, wherein said determining the reading fluency starting age is performed by ranking a reading fluency score on the alphabetical test versus ages of the population, and determining an age at which the reading fluency score on the alphabetical test versus ages of the population shows a maximum.
1. A method comprising testing a population of different ages on an alphabetical test comprising reading a sentence, wherein data for said alphabetical test is stored on a storage medium, retrieving said data for said alphabetical test by a processor and determining a reading fluency starting age, wherein said determining the reading fluency starting age is performed by ranking a reading fluency score on the alphabetical test versus ages of the population, and determining an age at which the reading fluency score on the alphabetical test versus ages of the population shows a maximum. 2. The method of claim 1 , wherein the reading fluency starting age is determined by ranking the reading fluency score versus ages of the population of individuals of different ages contributing the alphabetical test data.