What is the file drawer problem and its implications for the null hypothesis? How can researchers improve the transparency and rigor of null hypothesis testing?

Aug 15, 2024 ... Typically, the null hypothesis is a direct representation of the expected outcome. They start by asking a question, then rephrasing that ... In probability and statistics, the null hypothesis is a comprehensive statement or default status that there is zero happening or nothing happening. For example ... Nov 13, 2019 ... One of the most commonly used p-value is 0.05. If the calculated p-value turns out to be less than 0.05, the null hypothesis is considered to be ... A null hypothesis is developed to test the possibility that, given a sufficiently long period of time, these events are inevitable and occur purely as a ... It is concluded that research traditions and customs of discrimination against accepting the null hypothesis may be very detrimental to research progress. Apr 9, 2025 ... A null hypothesis, which states that there is no effective difference between the observed sample mean and the hypothesized or stated population mean. The null hypothesis (often denoted H0) is the claim in scientific research that the effect being studied does not exist. ... The null hypothesis can also be ... The null hypothesis is known as “no-change” or “no-difference” hypothesis. Which means there is no statistical difference between two data sets. Jan 3, 2014 ... We offer a phenotypic null hypothesis, which states that genetic variance is not an independent mechanism of individual differences in personality. A hypothesis test formally tests if the population the sample represents is normally-distributed. The null hypothesis states that the population is normally ...