An experiment in which two different measurements are taken on the same units and inferences are made using the differences between the pairs of measurements is a(n) experiment.

Paired difference experiment

Explanation:

A paired difference experiment makes use of a paired difference test to compare two different measurements using the same unit to make inferences about population means. In other words, it is the assessment of population means by comparing two sets of measurements with the same unit,

A paired difference test can be used to assess the measurements gotten from before or after a treatment in an experiment. It can also be used to assess between controls and matching cases of diseases.

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answer: a federal government has final authority on interstate/inter provincial  and international affairs, a confederation is one where the central/national government or authority is governing body what does not have final say over the same matters. hopefully this and i will try again if you don't like this answer : )

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this is a pretty broad question and can be a pretty lengthy answer. since 1900, women have gained a lot more rights and have become active in the workforce. with women being in the workforce, men play a larger role in family life. many family tasks are shared between men and women, whereas, women used to be the sole family caretakers.

that should get you started at least.