Question

After one year, the general health of the skin was measured in both groups and statistically analyzed. In the control group, wearing Skin Protect sunscreen daily led to improvements in general skin health for 60% of the participants. In the experimental group, wearing Sunaway sunscreen daily led to improvements in general skin health for 75% of the participants.
                       question
10.What are strengths of this study design?

11.What are limitations of this study design?

Answer 1

10. What are strengths of this study design?

For comparing two groups i.e. control group and experimental group, the t-test is used as a statistical technique which showed that 'Statistical significant" of data generated during the experiment. The control group is used as a baseline to compare groups and assess the effect of that intervention in experimental group. The purpose of having control is used to rule out the effectiveness of experiemntal group during. Comparisons between the control group and the experimental group are used to measure the effect of the treatment. Wearing Sunaway sunscreen daily led to improvements in general skin health for 75% of the participants in the experimental group which may be significantly higher than the control group (60%). This shows the effectiveness of wearing Sunaway sunscreen daily.

11. What are the limitations of this study design?

When the sample size is too low, the comparing between control group and the experimental group cannot be ruled out correctly.