The use of this particular sample is a threat to "external validity".
External validity is the degree to which consequences of an investigation can be summed up to the world on the loose. Since the objective of research is to educate us regarding the world, outer legitimacy is a critical piece of outlining a study. Threats to external validity are any components inside an investigation that decrease the generalisability of the outcomes.
A. Transitive verb. If you can have a DO Or IO after the verb, it is transitive.
Kelly (noun) drank (t.v.) what? drank bottle bottle is the direct object and drank is the transitive verb
Honestly there really isn't a answer to this
Answer: please try A or D try A instead
Explanation:
i had this one yesterday