9 results
Results are displayed by relevance.
Welsh: tuedd hanes
English: history bias
Welsh: tuedd optimistiaeth
English: optimism bias
English: non-response bias analysis
English: NRBA
Welsh: tuedd ar i fyny
English: upward trend
Welsh: tuedd ar i lawr
English: downward trend
Welsh: tuedd tuag i fyny
English: upward bias
Welsh: tuedd tuag i lawr
English: downward bias
Welsh: tir â thuedd ynddo i ymsuddo
English: ground liable to subsidence