Collins v. Hand’s Empirical Analysis
1968
Citation profile
6 federal appellate · 149 state decisions
How this case has been cited
Cited by 167 later decisions — most recently February 2022 · most notably 363 Pa. Super. 247 - Bolus v. United Penn Bank (1987), Brannan v. Lankenau Hospital (1980)
6 federal appellate · 149 state decisions
Later decisions citing this case, by decade. The current decade is in progress, and our corpus holds fewer opinions from the most recent years, so the latest bars are undercounted — not a real decline.
Relationships
Relies on 154 Cal. App. 2d 560 - Salgo v. Leland Stanford Jr. University Board of Trustees · Smith v. Yohe · Mature v. Angelo · McConnell v. Williams · Donaldson v. Maffucci
Most-quoted passages
The sentences later courts lift from this opinion, ranked by how many decisions quote each — the parts of the opinion doing the work. These counts are smaller than the citation total above because most of the 167 citing decisions cite the case generally; a passage count includes only decisions quoting that exact language verbatim.
““. . . It is the function of opinion evidence to assist the jury in arriving at a correct conclusion upon a given state of facts. To endow opinion evidence with probative value, it must be based on facts proven or assumed, sufficient to enable the expert to form an intelligent opinion. This opinion must be an intelligent and reasonable conclusion, based on a given state of facts and be such as reason and experience have shown to be a probable resulting consequence of the facts proved.””
6 later decisions quote this exact passage“In Collins v. Hand, our Supreme Court stated that ‘(a)n expert cannot base his opinion upon facts which are not warranted by the record. No matter how skilled or experienced the witness may be, he will not be permitted to guess or to state a judgment based on mere conjecture.’”
1 later decision quote this exact passage
How this case has been treated — in progress
Whether each later court followed, distinguished, criticized, or overruled this decision. The treatment classification (task #35) runs highest-cited cases first and lights up here as it reaches this one.