There are two countries that border the United States: Mexico and Canada.
To the <u>north</u> lies the Canada-United States border, and to the <u>south</u> lies the Mexico-United States border.
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Answer:
confounding variable; lowered.
Explanation:
In the field of statistical analysis, a <u>confounding variable</u> is one that influences both the independent variable and the dependent variable. When an experimented is designed, the researcher wants to study the effect the independent variable has on the dependent variable. However, if there's a third variable that can influence them, it can cause a spurious correlation.
The psychologist wanted to test the effects using the new computer program (independent variable) had in helping students learn math (dependent variable). But when she divided the group in two, separating them by gender, she introduced a third variable (confounding variable) that wasn't accounted for when designing the experiment and that can influence either variable. <u>Because of this, the internal validity of the study has been </u><u>lowered</u><u>.</u>
Answer:
Individual cases can be misleading and result in false generalizations.
Explanation:
One of the major limitation of case study research method is that individual cases cannot be generalized to a wider population and some cases are subjective, which can lead to false generalization. Other limitations are:
Case studies cannot be replicated,
There is a potential risk for researcher bias in case studies, in that the researcher's own beliefs can influence the way the data are collected and analysed,
Qualitative data depend to a large extent on people's perceptions and memory. The reliance on memory when reconstructing the case history could be subject to distortion.
Answer:Africa, but also in Asia and the Middle East
Explanation: