A Practical Unified Framework for Evaluating Psychological Theories and Observational Research Practices

In psychology, knowledge advances primarily through theory development and empirical testing within a dominant framework: theory, hypothesis, design, measurement, modeling, and interpretation. Although rigorous execution is assumed to yield valid insights, meta-scientific critiques reveal profound shortcomings. This article addresses these by (1) identifying seven core deficiencies in theory development; (2) delineating seven critical flaws in observational empirical testing; and (3) introducing three coherence dimensions (conceptual, causal, technical) across the pipeline as an integrative requirement. We synthesize these previously fragmented critiques into a novel, unified evaluative framework consisting of 14 explicit evaluation criteria plus three coherence dimensions. For each component we derive concrete, manuscript-level assessment criteria that can be applied at the sentence and section level. We demonstrate the framework’s practical utility by applying it to two published empirical papers, revealing detectable issues even in high-quality work. Compounded with well-documented problems such as low statistical power (~36%) and replication rates of 30–50%, these upstream deficiencies likely render a substantial proportion of published findings fragile or uninterpretable. Importantly, these flaws lie upstream of replication: while replication is essential for assessing reproducibility and can motivate theory revision, it cannot remedy deeper theoretical and methodological weaknesses and may, in some cases, reinforce flawed conclusions. By providing a practical tool for structured assessment and reform, this framework aims to strengthen theory construction, empirical rigor, and cumulative progress in psychology and related social sciences.