| AEI-R | Aptitudes in Early Childhood Education—Revised |
| FLUpc, FLEpc, ORpc, ELApc | Fluency, Flexibility, Originality, Elaboration—process |
| FLUpd, FLEpd, ORpd, ELApd | Fluency, Flexibility, Originality, Elaboration—product |
| V | Verbal aptitude |
| C | Quantitative aptitude |
| OE | Spatial orientation |
| MA | Auditory memory |
| VM | Visuo-motor skills |
| ML | Pre-literacy development |
| AI | Overall intellectual aptitude |
| SEN | Special Educational Needs |
| FICYT | Foundation for the Promotion of Applied Scientific Research and Technology in Asturias |