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.
Answer:
Louis for the American interior. The expedition traveled up the Missouri River in a 55-foot long keelboat and two smaller boats. In November, Toussaint Charbonneau, a French-Canadian fur trader accompanied by his young Native American wife Sacagawea, joined the expedition as an interpreter.
u should give the other perrson brainliest c:
