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.
Historians tell us about push/pull factors. There were forces that helped to push settlers west. That is, there were reasons why pioneers wanted to leave the east and move to new lands in the west.Historians also believe there were factors that helped pull settlers west.istorians tell us about push/pull factors. There were forces that helped to push settlers west. That is, there were reasons why pioneers wanted to leave the east and move to new lands in the west.