Could one genetic mutation be sufficient to bring on complex psychopathology? For decades, dominant models of mental ...

The Observer has compiled a list of 2025 guides, tutorials, and manuals designed to support psychological scientists as they ...

You see it in the news all the time. A headline declares a new coffee-drinking habit is “significantly” linked to better health, or a new marketing strategy “significantly” increases sales. The word ...

The null hypothesis is an essential concept in statistical analysis and hypothesis testing, often denoted as H0. The null hypothesis states that there is no significant difference between the ...

Read on to learn more about what a t-test is, the different formulas used, and when to apply each type to compare means and ...

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Introduction The commonly used frequentist paradigm of null hypothesis statistics testing with its reliance on the p-value and the corresponding notion of ‘statistical significance’ has been under ...

ABSTRACT: Benford’s law states that the basic distribution of first digits in naturally produced data is that the frequency of first digits decreases as the digits become larger. This law has been ...

ABSTRACT: We present here an alternative definition of the P-value for statistical hypothesis test of a real-valued parameter for a continuous random variable X. Our ...

It may be common knowledge that p < .05 indicates statistical significance. Psychology students (and others) are often taught that p < .05 means the probability (p) of rejecting the null hypothesis ...