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.
People who have everything may not know the feeling of having nothing. The child who has nothing is willing to share because the child does not want someone to feel the same way that he/she did. Meaning, the poor child does not want someone to feel like they have nothing
Susan seems to be exhibiting hyperactivity or anxiety.
The correct answer is that communication is irreversible.
In the given situation, Amber is still hurt due to the things that John had said unto her, especially calling her a "slob". Though they already made up, Amber still feels upset, because she thinks that what John has said is true. John is experiencing the irreversible aspect of communication, wherein communication cannot be taken back, whatever you might have said, will stay that way. It cannot be changed nor taken back.