Answer:
Masters
Explanation:
It goes Associates, bachelor's master's doctorate
The term 'white man's burden' refers to the duty of the 'white' people to educate and make progressive the countries they colonized back in the Age of colonization. It was regarded as their 'responsibility' to their colonies in exchange for taking over them.
I believe the answer is: treatment group, experimental group, heat stress group
In research, equivalent items refers to the items that are identical in almost everything except their response toward a certain variable. Treatment group, experimental group, and heat stress group are all humans being with similar characteristics that viewed as 'identical' in researchers' point of view