Research that translates the social world into numbers that can be treated mathmatically this type of research often tried to find cause-and-effect relationsips?

Quantitative Research

Explanation:

In quantitative research, the relationships of elements in the research are established in a cause-and-effect way. This research type is mostly used in social science discipline and observational data are usually being translated into numbers. Online surveys and polls can be used in the research study and data gathered are then analyzed using statistical approaches.

answer:

d. because dr. laguardia selected a widely used measure, his study generalizes to has strong external validity. external validity has limited external validity. other applications of this measure.

the widely used measure that he applied to his experiment was the benton facial recognition test. it employed on to football players and as result, only players who suffered brain concussions did not pas this test. and although it has an external validity, it is limited because it isn't general to apply to other population.

the technology changed agriculture in an impacting manner since many people left the field work by a cellular or other technological appliances