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Introduction Quasi-experimental designs are widely utilized in fields such as education, healthcare, public policy, and the social sciences, especially in contexts where conducting true experiments (i.e., randomized controlled trials) is
What is an Experiment? An experiment is a scientific method used to establish causal relationships between variables. It involves the manipulation of an independent variable (IV) to observe its effect
Meaning of validity Validity refers to the question: “Does the test measure what it claims to measure”? The word “valid” comes from the Latin ‘validus’, it meaning strong. Validity is