Profile Analyses The majority of SD studies involve some hypothesis about differences in affective reaction. Such an arrangement is most useful for maximum retrieval of the kind of information wanted by the majority of patrons and the librarians serving them. November 1998 Microfilmed By Preservation Resources Bethlehem, PA 18017 Camera Operators Sandy Kehm COPYRIGHT The copyright law of the United States — Title 17, United States Code — concerns the malting of photocopies or other reproductions of copyrighted material.
Since the scale takes on different meanings with different concepts, its factorial composition may be different for the special class of objects. That is, one would compare the means for concept a versus concept b, for time 1 versus time 2, or for group x versus group y on each of the three dimensions separately. Thus 513 is section 3 (Jeometry) of division 1 (Mathematics) of clas 5 (Pure syence). This number, giving clas, divi- sion, section and subsection, if any, is cald the clas number, and is ap- plyd to every book and pamflet belonging to the hbrary. Furthermore, it appears that most of the possible improvement can be obtained using relatively few scales in making up the factor scores.
Cut at a reasonable spot, i.e., one that will bring about a useful grouping. Most public libraries prefer to have their belles-lettres in each language divided by form, and this is the traditional DC arrangement, e.g., 820 English literature, 821 Poetry, 822 Drama, 823 Fiction, 824 Essays. Furthermore, the multiple correla-end p. 250 tions of EPA ratings with traditional scales often are much higher than the correlations of Evaluation ratings only with the scales. In the future it would be advisable to obtain ratings on all three dimensions when one is interested in attitudes. Accumpanying clas num- ber is the book number, which prevents confuzion of different books on the same subject. In finding books, numbers markt on baks ar foUowd, the upper being the clas and the lower the book number. When any new subject cums up, interline it and its sinonims in Index, with clas number decided on, so clasifyer may be uniform with himself in future work.