Types of Validity 1. Face Validity ascertains that the measure appears to be assessing the intended construct under study. The stakeholders can easily assess face validity. Although this is not a very âscientificâ type of validity, it may be an essential component in enlisting motivation of stakeholders.
Learner's definition of GLEAN. 1. [+ object] a : to gather or collect (something) in a gradual way. She gleaned her data from various studies. He has a collection of antique tools gleaned from flea markets and garage sales. [+] more examples [-] hide examples [+] Example sentences [-] Hide examples. b : to search (something) carefully. They spent days gleaning the files for information.
The grammar G implicitly defines a set of trees: any tree that can be derived from Z using the rule set P is said to be described by G. This set of trees is known as the language of G. More formally, the relation â G on the set T Ï (N) is defined as follows: