Are matched pairs independent or dependent?
Terms such as paired, repeated measurements, within-subject effects, matched pairs, and pretest/posttest indicate that the groups are dependent.
What is the difference between independent and dependent events choose the correct answer below?
What is the difference between independent and dependent events? Two events are independent when the occurrence of one event does not affect the probability of the occurrence of the other event. Two events are dependent when the occurrence of one event affects the probability of the occurrence of the other event.
When to use two sample or paired t test?
Two-sample t-test is used when the data of two samples are statistically independent, while the paired t-test is used when data is in the form of matched pairs. There are also some technical differences between them.
When do you use independent and paired samples?
When comparing two or more groups, cases may be independent or paired. Cases in each group are unrelated to one another. Cases in each group are meaningfully matched with one another; also known as dependent samples or matched pairs An instructor wants to compare students’ scores on the midterm and final exam.
When does dependence occur in a two sample t-test?
When the objects in one sample are all measured twice (as is common in “before and after” comparisons), when the objects are related somehow (for example, if twins, siblings, or spouses are being compared), or when the objects are deliberately matched by the experimenters and have similar characteristics, dependence occurs.
Why are the scores of a paired sample test?
scores are paired samples because the two samples consist of the same persons. This is a one-tailed hypothesis test since the difference between the means must be sufficiently. large and in a particular direction (greater tolerance for speeches than for college teaching) to reject the null hypothesis.