English: FSM residual
Welsh: gweddilleb FSM
Subject: Addysg
Welsh definition: The residual is the difference between actual achievement and the average or ‘expected’ achievement. A positive residual indicates that achievement exceeds the model expectation, whereas a negative residual indicates that achievement is lower than the model expected level.
Plural: gweddillebau FSM
Notes: Talfyriad yw “FSM” o’r geiriau Saesneg “free school meals”.