Answer:
dependent: exam score, independent: presence of music,
confounding can be the fact that students in no music condition completed exam as they normally would
high validity
Explanation:
Dependent variable is the variable whose value depends on independent varaible. As independent variable is changed, the value of dependent variable changes
Students in no music condition completed exam as they normally would can be confounding as no description is given about how they would noramlly complete an exam. Any other factor and not no music condition, in normal exam condition could have affected their scores.
The experiment has high validity as the exam scores of student exposed to music was significantly higher than those not exposed to the music. The results also proved the hypothesis.
The president can veto bills passed by Congress
Explanation:
You are entering an expressway and are in the acceleration lane you should speed up to adjust to freeway speed in acceleration lane and then signal and move carefully into freeway lane. You should not enter the freeway at a sharp angle, it can be dangerous.
