Defining the Plausible Rival Hypothesis (PRH) The concept of the Plausible Rival Hypothesis (PRH) is foundational to rigorous scientific inquiry, particularly within psychology and the social sciences. Fundamentally, a PRH is a proposition that provides a compelling, logical alternative explanation for the observed results, challenging the initial causal claim asserted by the researcher’s primary hypothesis. […]
Definition and Distinction from A Priori Tests The term aposteriori test, frequently referred to in statistics and psychology as a post hoc test (Latin for “after this”), describes a statistical procedure where the null or alternative hypothesis being tested is formulated specifically after the data collection phase is complete and the raw data, or preliminary […]
Defining the Alternative Hypothesis The alternative hypothesis, often denoted as H1 or Ha, constitutes the foundational proposition in inferential statistics that stands in direct opposition to the null hypothesis (H0). This crucial statement posits that a genuine effect, correlation, or relationship exists between the variables under investigation, suggesting that any observed differences or patterns are […]