Some are restricted for use by speech and language professionals (therapists or SALTs in the UK, speech-language pathologists, SLPs, in the US and Australia). A commonly used test battery for diagnosis of SLI is the Clinical Evaluation of Language Fundamentals (CELF).
Noun. (plural push factors). 1  A factor that leaves one with no choice but to leave one's current home (especially parental home), country, region, organization, or religion. 2  Link/Cite.
Legal Definition of factor. 1  1 : one who acts or transacts business for another: as a : a commercial agent who buys or sells goods for others on commission b : one that lends money to producers and dealers (as on the security of accounts receivable)