Table 1 Interpretation of the status of cognitive development.
z score range | Category | Cognitive development status |
|---|---|---|
+ 2.01 and above | A | Extremely high development |
+ 1.26 to + 2.00 | B | High development |
+ 0.51 to + 1.25 | C | Above average development |
− 0.50 to + 0.50 | D | Average development |
− 0.51 to − 1.25 | E | Below average development |
− 1.26 to − 2.00 | F | Low development |
− 2.01 and below | G | Extremely low development |
