Examples Of T Test Research Questions

Good research questions need focus.

Examples of t test research questions. T test for dependent groups correlated t test df n number of pairs 1 this is concerned with the difference between the average scores of a single sample of individuals who are assessed at two different times such as before treatment and after treatment. Example of paired sample t test. A good research question should be focused on a single topic or on several closely related ideas.

Suppose you wish to test the effect of prozac on the well being of depressed individuals using a standardised well being scale that sums likert type items to obtain a score that could range from 0 to 20. Revised on june 5 2020. If a question is too general or doesn t stay on one topic you can fix it by deciding which part of the topic you want to research.

Published on april 18 2019 by shona mccombes. A research study was conducted to examine the differences between older and younger adults on perceived life satisfaction. It is often used in hypothesis testing to determine whether a process or treatment actually has an effect on the population of interest or whether two groups are different from one another.

Also i made them with excel in mind. A 5th grade weather unit test questions. Need practice with two sample t tests.

Ten older adults over the age of 70 and ten younger adults between 20 and 30 were give a life satisfaction test known to have high reliability and validity. This is an example of a one tail t test as opposed to a two tailed t test outlined above. A 5th grade weather unit test questions.

Spss only performs a 2 tailed test the non directional alternative hypothesis and to obtain the p value for the directional alternative hypothesis one tailed test the p value should be. An introduction to t tests. Nominal or interval data.