-Refer to the above diagram.Which line(s) show(s) a positive relationship between x and y?
Definitions:
Confounding Variable
An external variable that influences both the dependent and independent variables in a study, potentially skewing the results.
Observational Study
A study in which the researcher observes and records behavior or outcomes without manipulating variables.
Traditional Experiment
A research methodology involving the manipulation of variables to determine their effect on a particular outcome, usually featuring a control and experimental group.
Control Group
In an experiment, the group that is not exposed to the treatment and is used as a benchmark to measure how the other tested subjects do.
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