This assessment was introduced in the 2018/19 academic year and is the only assessment for which data is available both before and after the disruption caused by COVID-19.
Cyflwynwyd yr asesiad hwn ym mlwyddyn academaidd 2018/19 a hwn yw'r unig asesiad y mae data ar gael ar ei gyfer cyn ac ar ôl y tarfu a achosir gan COVID-19.