[!lemma=minimum] [word=educational] [tag=NN] □
[!lemma=minimum] [word=educational] [tag=NN] □ □
[!lemma=minimum] [word=educational] [tag=NN] □*
” Frequency of need for educational accommodation and number of required accommodations quantified relative “ accommodation deservedness ” across presented disabilities . Two variables , mother 's educational attainment and number of books in the home , illustrate another issue that can arise in comparative studies – that is , it may be desirable or necessary to treat variables differently in different countries .