A PRACTICAL COMBINATION OF EMPLOYMENT METHODS 347 of the ability which these claims signify. The application blank and the ordinary series of questions may reveal what the education and experience of an individual have been, but they do not show how well the individual has made use of his opportunities or what are his actual abili ties at the time of the interview. A machinist, for instance, may state to the interviewer that he has had three years of experience at one place and four years at another, and has worked on all kinds of machine tools, from drawings and without supervision. These claims are good so far as they go, but still they do not enable the interviewer to conclude that the applicant is a first-rate mechanic worth so many cents per hour. Even if the candidate holds a certificate from a reputable apprentice school, his ability is still largely a matter of doubt; for few apprentice schools are able to guarantee that all their graduates are experts. The next step, therefore, in determining the ability of the applicant is to ask him the test questions prepared, together with the possible answers, for this very purpose. Questions of this kind, applying to the work of machin ists, gunsmiths, designers of jigs and fixtures, accountants, etc., are given in other chapters and in the Appendix. These question series can be given by the ordinary inter viewer who can determine approximately, by means of an accompanying key, whether or not the applicant is giving the proper answers. If the answers given are entirely wrong or very crude, it may be assumed that the applicant does not know as much as he has claimed to know and he may therefore be rejected. If his an swers are good or even fairly good, he will be interviewed further. Up to this point it is possible for the ordinary employ ment clerk to conduct the interview, but thereafter the