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.
Push Factors. Push factors are those that encourage a migrant to leave his place of residence. A migrant is more likely to perceive push factors more accurately than pull factors because he is more familiar with the place where he is living than the place that he is moving too.his migration occurs because the push factors -- limited economic opportunities and lack of entertainment and diversions -- and pull factors -- jobs, cultural attractions, better services -- are both strong.