The most widely used collection assessment tool is checklisting. Interpretation of checklist studies has usually been by comparison to other libraries or by a subjective response to the ownership percentage. Using or creating tiered checklists and subjecting the results to a goodness of fit statistical test provides an analysis of the selection quality. If more highly rated materials are selected at a significantly higher rate, then the selector(s) is shown to be prudent, even if the total amount selected in the subject area appears to be inadequate. This separates the performance of the selector from the amount of resources allocated to the selector.
Dennison, R.F. (2000), "Quality assessment of collection development through tiered checklists: can you prove you are a good collection developer?", Collection Building, Vol. 19 No. 1, pp. 24-27. https://doi.org/10.1108/01604950010310866
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