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.
A social play.
because it is a play that involves with interactions between peers which is crucial in the early years.
Same-> they had very little food, it was extremly cold in the winter, and thay hade to build everything by themselves.
Answer:False
Explanation:
The core of the earth is filled with molten rock, while for a little while as you dug the earth would be cool it would eventually become hot and molten.
