Not much, apparently, if you're a juror who never understood the legal jargon in the first place. From Legalwriting.net:
The Texas Pattern Jury Charges Plain-Language Task Force ran its first test of the original admonitory instructions last week. Here is one tidbit.That's one of the sorry legacies of logorrheic law profs. Avoiding jurors having to wade through impenetrable legalese is one of the few upsides to the otherwise lamentable modern preponderance of plea bargains over jury trials. More than a preponderance, really - less than 1% of criminal cases in Texas ever make it to a jury anymore. When they do, I wonder how many jurors simply misunderstand what it is they're being asked to decide?
When asked to give a percentage for how sure you must be to conclude that something was proved by a "preponderance of the evidence," the 25 test jurors gave the following percentages:
Of course, the correct answer is 51% or "more likely than not," which is the language California used in its new jury instructions in place of "preponderance of the evidence."