how is t-test tested how to compare responses of t-test how to compare likert responses before a disease how many questions on the likert how do we compare likert responses before and after a trial? what is t test for likert scales t-test for risk assessment what kind of likert test is used to measure disease severity? what is the t-test used for what is the best way to compare likert responses how to measure a likert score how to compare likert scores after intervention why is likert used in research how many questions should the likert questionnaire contain how to test for likert test when is a likert test used why does likert test work why do we use t-tests for likert response how long does it take to find out if someone is a t-testing type before or after intervention? what is the likert test used to compare responses before intervention and after?