A Randomized Control Trial (RCT) is a type of scientific experiment that randomly assigns participants to an experimental group or a control group to measure the effectiveness of an intervention or treatment.| Simply Psychology
Experimental design refers to how participants are allocated to different groups in an experiment. Types of design include repeated measures, independent groups, and matched pairs designs.| Simply Psychology
Internal validity refers to whether the design and conduct of a study are able to support that a causal relationship exists between the independent and dependent variables. It ensures that no other variables except the independent variable caused the observed effect on the dependent variable.| Simply Psychology
Observer bias is a type of experimenter bias that occurs when a researcher's expectations, perspectives, opinions, or prejudices impact the results of an| Simply Psychology
A controlled experiment aims to demonstrate causation between variables by manipulating an independent variable while controlling all other factors that could influence the results. Its purpose is to show that changes in one variable (the independent variable) directly cause changes in another variable (the dependent variable).| Simply Psychology
A confounding variable is an unmeasured third variable that influences, or “confounds,” the relationship between an independent and a dependent variable by suggesting the presence of a spurious correlation.| Simply Psychology
Extraneous variables are factors other than the independent and dependent variables that may unintentionally influence the results of an experiment. They need to be controlled, minimized, or accounted for through careful experimental design and statistical analysis to avoid confounding the relationship between the independent and dependent variables.| Simply Psychology
The experimental method involves the manipulation of variables to establish cause-and-effect relationships. The key features are controlled methods and the random allocation of participants into controlled and experimental groups.| Simply Psychology