Answer:
reliability; validity
Step-by-step explanation:
Reliability: In research or statistics, the term reliability is referred to as the phenomenon that involves the consistency of a particular measuring test or a research study, for example, if an individual tends to measure one's height at the course of the day then the height should remain when the person measure at night.
Validity: In psychological research or statistics, the term validity is referred to as the phenomenon that is responsible for measuring the tendency of a test to measure what the test claims or are determined to measure.
In reference to the question above, Dr Hindsmith's test appears to have reliability but not validity.