American Speech-Language-Hearing Association

ASHA Thesaurus

The ASHA Thesaurus is a controlled vocabulary used to organize information in the fields of audiology and speech-language pathology.

Terms marked "(node label only)" are for classification only and should not be used for indexing. Non-preferred terms are in italics.

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Research methods

Broader Term


Narrower Term

Causal-comparative research
Clinical research
Correlational research
Descriptive research
Experimental research
Prospective research
Retrospective research

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