Useful tips for everyday
What is a noun phrase examples? A noun phrase is a group of two or more words headed by a noun that includes modifiers (e.g.,…
What is the meaning of average mean? Noun. average, mean, median, norm mean something that represents a middle point. average is the quotient obtained by…
Can you have two controls in an experiment? Using two controls exposes the experimenter to a high risk of confirmation bias. If the experimenter resists…
Can you change the null hypothesis? As p-hacking is often used to just reject the nil-hypothesis, changing the null-hypothesis to a range of values around…
How do you determine the strength of a relationship between two variables? A correlation coefficient measures the strength of that relationship. Calculating a Pearson correlation…
How many SD away is an outlier? If the historical value is a certain number of MAD away from the median of the residuals, that…
How to test for trend in time series? There are two common trend removal procedures: taking say the first difference and performing the time-trend regression…
What is the F test statistic formula? The F statistic formula is: F Statistic = variance of the group means / mean of the within…
What is two alternative forced choice test? Two-alternative forced choice (2AFC) is a method for measuring the sensitivity of a person, child or infant, or…
What is text distance? The Levenshtein Distance is the number of operations needed to convert one string into another. So every edit needed will add…