A students changing level of interest and background knowledge in algebra, during a study on the effects of response card quiz r
eviews on the next-day quiz performance is a potential _____________________ to the investigation and should be monitored 1. application variable
2. systems variable
3.confounding variable
4. reliability variable
Explanation:Confounding variable is the variable that indicates about the external influential factors that produces the manipulated consequences of independent and dependent variable.This variable can lead to producing useless outcomes in an experiment.
According to the question, the changes occurring in interest of student in algebra can be due to the outside factors which are not generating the actual results and thus, experiment is getting ruined.
Other options are incorrect because application variable remain same for the experiment,system variable are the variables of certain system and reliability variables describe about the variable on which dependent or stable.Thus, the correct option is option(3)
<span>The name given to political parties whose central issue is the environment and the practice of responsible ecology is Green party. Their principles are built upon environmentalism together with nonviolence and social justice. Several green parties have already been created primarily as a result of the growing concern for the environment. </span>
Status offense is an action that is considered illegal only for the minors and would not be a crime if an adult does the same behavior. For example, using alcohol, running away from home are unlawful for the youth because they are under age.