The characteristic of an experiment that establishes the causal relationship between variables is termed:
A)power.
B)reliability.
C)internal validity.
D)external validity.

Question

Quizplus · Accepted Answer

Internal validity refers to the extent to which a study or experiment can establish a causal relationship between variables. This means that the design, methods, and procedures of the study are free from biases or influences that could affect the results or interpretation of the findings. It implies that the independent variable (the factor being manipulated or tested) is truly responsible for any observed effects on the dependent variable (the outcome or response being measured). Therefore, internal validity is a critical aspect of research quality and credibility. Power refers to the ability of a study to detect statistically significant effects, while reliability refers to the consistency or stability of the measurements or data over repeated trials or time points. External validity refers to the generalizability or applicability of the findings to other populations, settings, or contexts beyond the study sample or conditions. Although these factors are also important in research, they are not synonymous with internal validity and do not solely determine whether a causal relationship can be inferred.

The Characteristic of an Experiment That Establishes the Causal Relationship