Further, the inventory of permissible feet from (12) and (13) constrains what syllable sequences can be validly parsed as feet.
Any validly drawn conclusion about easy cases must derive from some other source.
A proposition validly deduced from a true proposition is itself true.
This influences the quality and ease of carrying out a meta-analysis as variable reporting impacts the ability to extract and validly combine results across studies.
After all, for every validly drawn conclusion there are premises from which that conclusion is drawn.
Each of us can validly take a different slice of what we consider the subject.
Consequently, all elements validly posited in grammatical description have some kind of meaning (often quite schematic).
Which extant assessment instruments can reliably and validly document change in learner proficiency and at which levels?
