What is "Developed Ability"?
Posted by David Tate on 22 October 2012 02:57 PM

Testing students’ developed ability is central to what we do at CEM. It represents the student’s propensity to acquire new skills and knowledge and results from a combination of inherited traits, their goals and motivations, their interaction with adults and peers and their response to the opportunities they are presented with. It is a student’s ability to learn. It is something that they have developed over their lifetime and that they will continue to develop. In Secondary/Post16 we measure it using the MidYIS, Yellis or Alis Computer Adaptive assessment or alternatively with our paper-based assessments.

Developed Ability is generally is well correlated with performance in examinations, and hence a developed ability measure, like MidYIS, Yellis or the Alis adaptive assessment, can be used to predict likely performance at KS3/(I)GCSE/Post 16 courses.

Measures of developed ability are useful because they tell you something different to how well the pupil is achieving in class (i.e. what they have been taught). If you compare a pupil’s developed ability score with their performance in exams (e.g. KS2, end of term assessment, mock exam etc.) you can tell the difference between a high ability pupil and a pupil who works hard. Comparing the 2 sets of data can flag up pupils who are underachieving – their exam scores will be less than their developed ability scores, and over-achieving – their exam scores will be better than their developed ability scores.