Sima believes that wearing black clothing causes people to behave more aggressively. in her experiment, she randomly assigns people into two groups. in group a, participants are given black shirts to wear, while participants in group b are given white shirts to wear. each participant is then asked to play a violent video game for fifteen minutes and his or her score is computed. in this experiment, each participant's video game score is the variable.

a) dependent
b) random
c) independent
d) confounding

Dependent variable

Explanation:

The dependent variable is the variable that is tested in an experiment and that can not be manipulated by the experimenter. It is dependent on the independent variable.

Whenever the experimenter manipulated the independent variable, the effect of independent variable manipulation can be noticed on the dependent variable. These both the variable can be noticed in the form of cause and effect.  

Thus Sima used the video game as the dependent variable that can not be manipulated but the independent variable such as shirt can be manipulated and can see the effect of shirts color effect the video game.  

levels of production can be increased by technology while holding labor and capital constant, because increased technology makes the production process more efficient. subsequently, the lras curve is almost a vertical line, that can shift to the right, with an increase in technology.

the relationship between the lras curve and the ppc is that both can make the economy could grow. the ppc achieves that when it shifts outward because of more resources or technological advances while the lras curve shifts if more resources are developed or if there are technological advances.

the lras curve is a vertical line at an output level that represents the number of goods and services a nation can produce over a sustained period using all of its productive resources as efficiently as possible with all of the current technology available to it.

the production possibilities frontier (ppf) is a graphical device that is used for economic analysis of production decisions because the ppf measures the maximum possible combinations of two goods that an economy is capable of producing with its currently available resources and technology.