Finding the “Best Fit”: An Intuitive Guide to Maximum Likelihood Estimation The Fear of the Unknown (and Statistics) If there is one thing that unites psychology students and mental health professionals across the globe, it is often a shared, quiet anxiety regarding one specific subject: Statistics. We entered this field to understand the human mind,
Cohen’s Kappa Explained: Measuring Reliability in Psychology Research Imagine a patient named Sarah. She visits Dr. A because she’s been feeling persistently low, tired, and unmotivated. Dr. A conducts an assessment and diagnoses her with Major Depressive Disorder. Seeking a second opinion, Sarah visits Dr. B the following week. Dr. B asks similar questions but
Guide to the T-Test: Decoding Data to Understand Behavior Why Statistics Matter in Therapy Imagine you have developed a new cognitive-behavioral intervention designed to reduce anxiety. You try it with a group of clients, and they seem to get better. But as a scientist-practitioner, you have to ask the hard question: Is this improvement real,