Answer choice A.
The paragraph doesn't really pick a side. All the information is has is more for explanation rather than to pursuade.
Students are given 60 minutes to complete it.
Four scourge and seven years ago. it marks the day that we got independence from great britain which lincoln recited in his speech due to slavery at the time
B to export oil from Britain to the Middle East
Answer:Internal Invalidity
Explanation:
Internal Invalidity means something else produces the outcome that is observed in a research and is a result of the conclusion made from that experiment , something else other than the actual stimulus that was meant to produce those results in an experiment. This means these result may not be a true representation of the research outcome because something else has intervened and had it effect on the participants. Dependent variable are affected by something else outside of the experimental stimulus.
"participants get more benefit from the human contact of a research " this is something else other than the clinical treatment.
