These Library of Congress subject headings will help you locate books relating to research methods.
NOTE: This is not an exhaustive list of search terms. Rather they are some suggestions. You should also think about other terms that will encompass topics relating to research methods.
Search for them using the SUBJECT field.
Criminology -- Research -- Methodology
Educational tests and measurements -- Design and construction -- Handbooks, manuals, etc.
Examinations -- Design and construction -- Handbooks, manuals, etc.
Humanities -- Research -- Methodology
Qualitative research -- Methodology
Quantitative research -- Methodology Questionnaires
Questionnaires -- Methodology
Social sciences -- Research -- Methodology