aaq statistics

mode

the value that appears most frequently in a data set

mean

the average of a data set, calculated by dividing the sum of all values by the number of values

median

the middle value in a data set when arranged in ascending order, or the average of the two middle values if the data set has an even number of values

percentile rank

the percentage of scores in a data set that fall below a specific score, indicating its relative standing

skewed distribution

a representation of data where values tend to cluster more towards one side of the mean, leading to an asymmetric distribution

standard deviation

a measure of the dispersion or spread of a set of values in a data set, indicating how much the values deviate from the mean

68%

of scores fall within one standard deviation of the mean in a normal distribution

95%

of scores fall within two standard deviations of the mean in a normal distribution

statistical significance

a determination of whether the results of a study are likely due to chance

5%

is the probability threshold indicating that results are statistically significant, often implying less than a 5% likelihood that the observed results occurred by chance

effect size

a measure of the strength of a relationship in a statistical context

correlation coefficient

a numerical measure of the strength and direction of the relationship between two variables, typically ranging from -1 to +1