The speech samples were divided into four age groups (3; 0–3; 6/3; 6–4; 0/4; 0–4; 6/4; 6–5; 0 year of age) to make comparison by age possible.
Máls% num var skipt á fjögur aldursbil (3; 0–3; 6/3; 6–4; 0/4; 0–4; 6/4; 6–5; 0 ára) til a " gera samanbur " eftir aldri mögulegan.