# AI-Therapy | Statistics for Psychologists | Hypothesis Testing

However, it is not possible to come up with an example for each cell of these matrices because it is not possible to propose a non-directional and causal hypothesis.

## The Hypothesis | Psychology Today

### hypothesis psychology Study Sets and Flashcards | Quizlet

At the heart of research lies a question. For example, consider the following scenario: you just went for a run in the park, and you feel great. Naturally, you might ask yourself "does exercise make people happy?". If you are asking a question that you don't know the answer to, research is necessary to resolve it. There are many forms that this research can take, from a literature review to performing an experiment. A technique known as statistical hypothesis testing is often used in psychology to determine a likely answer to a research question.

### An Example of How to Write a Hypothesis

With hypothesis testing, the research question is formulated as two competing hypotheses: the *null hypothesis* and the *alternative hypothesis*. The null hypothesis is the default position that the effect you are looking for does not exist, and the alternative hypothesis is that your prediction is correct. The goal of hypothesis testing is to collect evidence and reject the null hypothesis if it appears unlikely to be true. In other words, if we reject the null hypothesis there is some experimental support for the alternative hypothesis (although it is important to keep in mind that we have not *proved* the alternative hypothesis is true).