Answer:
An operational definition is a statement of the procedures or ways in which a researcher is going to measure behaviors or qualities. For example, the operational definition of anxiety could be in terms of a test score, withdrawal from a situation, or activation of the sympathetic nervous system. Operational definitions are important because one must define the measured variables in order to properly measure it.
Hope I helped :)
Answer:
C. HGTV
Explanation:
A job can help you pay the bills, etc and can help develop good character and other attributes and life lessons. College can help you in multiple ways for preparing you and in finding which path is being taken towards your future. The IPad can help you with many things such as wanting to take a break and listen to music, or it can be used in a more efficient way by allowing you to research and study, which would become helpful if you are planning to go to college. The HGTV is kinda pointless, for you can just watch something on your IPad or do much more on it for it has multiple functions. You could use the money for something way more important or useful. Therefore, the HGTV is the opportunity cost.
Answer:
"If athletes consume carbohydrates, their running times will increase"
Independent variable: whether the athletes eat carbohydrates
Dependent variable: running times
Experimental group: the group that eats the pasta dinner
Control group: the group that eats the steak dinner with no carbohydrates
The purpose of using random assignment is to make sure that there are no selection factors that might affect the group. For example, if she asked the boys to eat one food and the girls to eat another, that wouldn't be random, and would introduce the sex of the athletes as a possible confounding variable.
Explanation:
(note that this is kind of a weird question: why would you want to *increase* running times?)
Answer:
There are three ways you can retrieve information out of your long-term memory storage system: recall, recognition, and relearning
