Answer:
the brightness of the lights.
Explanation:
Independent variable: In a psychological experiment, the independent variable is one that is being changed or manipulated. The experimenter has the authority to change and control the independent variable and it possesses a direct effect on the dependent variable in a given experiment.
Example: The independent variable is best described in terms of time and age.
In this study, the independent variable is the brightness of the lights.
Answer: C
Explanation: Slaves weren't taught or allowed to learn much so they learned by stealing a book for example and reading it on their free time.
<span>After the disaster at Cannae, the Romans avoided battle in Italy and frustrated Hannibal. At the same time, the Romans raised an army and attacked the Carthaginians closer to home and their main spheres of influence, thus drawing off Hannibal and his forces. The final battle at Zama saw a well provisioned and led Roman army defeat a bedraggled Carthaginian force that had been rapidly transported and composed before the battle.</span>
Hey there!
<span>Johannes
Gutenberg’s invention of the printing press had created a huge
impact on the spread of Martin Luther’s ideas. His ideas quickly spread around
to individuals at a low and efficient price.
Thank you! </span>
