Records Necessary to Scientific Study
The scientific methods which have been referred to imply as their necessary basis a series of detailed and accurate records. Some of these records, as, for example, those which show school attendance and those which deal with expenditures, are kept in ordinary routine. Some have to be made especially for the purposes of scientific studies. Here belong all those records which are made through tests. Tests are merely devices for showing clearly and explicitly how far educational practices have succeeded in special cases.