Examlex
When a third variable inserted into the analysis changes the results when two other variables were studied previously,this third variable is called a moderator variable.
T-statistic
A statistical measure used to determine the significance of the difference between two sample means compared through their standard error.
F-statistic
A value calculated in statistical analysis to assess the significance of group differences in a data set.
Alternative Hypothesis
A statement in statistics that is tested against the null hypothesis, suggesting that there is a significant difference or effect.
Population Means
The average of a set of characteristics, quantities, or values for an entire population.
Q1: Which of the following allows variables,such as
Q10: Find the mean score of the following
Q22: The t-test for comparing the means of
Q29: In most cases,the size of the population
Q31: Which type of measure assigns a value
Q31: When a researcher combines the "Strongly Disagree"
Q37: The degree of accuracy required in sampling
Q42: Which of the following informs the respondent
Q46: _ is the accuracy of a measure
Q90: Which type of sampling procedure selects initial