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>
My opinion is C,because its a desert you need water to live
Answer:
D. an elderly woman plants a flower garden on the vacant lot next to her house
Explanation:
External benefits refers to the advantage or potential gains one gets by investing or doing an activity or task which is not of any primary benefit to himself or herself. The society or other people can gain benefit from them apart from the person doing the activity.
In the context, a woman who does flower gardening on a vacant land which is next to her house can result an external benefit form the flowers. She can admire the beauty of the flowers and also the other people in the society. However it will not have an internal benefit to the woman.
May and aztec is the anwser
Perhaps it is to backup a hypothesis, what are your choices?
