cording to the research done in the first article, the authors used a matched pair t-test by collecting data from individuals at two different times during the cancer diagnosis, the authors can use matched pair t test to demonstrate whether a difference has taken place. Based on the study, the depression of the caregivers and the burden they carried were measured during the palliative period and terminal period (Grunfeld, et al., 2004). While in the second article, an independent T-test was used. This independent t- test examines whether there is a statistically significant difference between means of two unrelated groups. In this experiment, a spouse and a loved one had their relationship categorized by relationship quality (supportive vs ambivalent) in order to see if there was any change in perceived burden, anxiety & depression (Reblin, et al., 2016). I believe the authors in the first article used the appropriate methods because the matched t score test allows the authors to compare results from two different time periods thus resulting in pairs of observations that can be examined to help confirm or deny the initial hypothesis(Reblin, et al., 2016). This comparison of the means allows the authors to explain if the caregivers’ depression and perceived burden has increased or decreased as the loved one’s condition worsens (Grunfeld, et al., 2004). While in the second article, the authors used were appropriate because the independent t test is appropriate because the authors are looking to examine the mean difference between the same variables but across two different groups (ambivalent vs supportive) (Reblin, et al., 2016). Since the purpose is to find out if a relationship has an effect of perceived burden, anxiety & depression, using an independent t test allows for the collection of data that will determine if there is significant statistical difference or not. The similarity is that both t test try to determine the difference between two means is significant. The test done on both articles tries to measure perceived burden & anxiety levels. A significant difference occurs when using a matched t test, it compares the scores on two different variables but for the same group. (In this case same individuals but over two different time periods). There is a relationship between the observations collected in both samples (second sample collected is dependent on the first). In the second article, An Independent t test is used to examine if there is a difference in the means of two different groups (In this case ambivalent vs supportive). Sample is collected randomly and independently (Reblin, et al., 2016). In the first article, the Matched pair t test reduces error. Variance within subjects is typically smaller than between subjects (Grunfeld, et al., 2004). The Matched t test that was used in the first article also do not require many subjects to achieve the same results as it is required in the independent sample t test. While in the second article, Homogeneity of variance allows for the assump