This plot is used to find the relationship between two independent variables
What is a scatter plot?
This denotes the Pearson's correlation coefficient
What is r?
This denotes Spearsman's correlation coefficient
What is rs?
This denotes the two variables are negatively correlated
What a negative r value denotes?
When the P value is < 0.05
When we will reject the null hypothesis?
It is a statement made about a population for testing purpose
What is a hypotheses?
This type of test is used when the critical region is evenly distributed
When we use two-sided test?
When P value > 0.05
When we do not reject the null hypothesis?
This test is used when the data is not normally distributed and we have paired samples
When we will use Sign test?
This test is used when the data is not normally distributed and we have paired samples and data contain extreme values
When we will use Wilcoxon signed rank test?
This test is used when the data is not normally distributed and we have independent samples
When we will use Wilcoxon rank sum test?
This test is used when we have to compare more than two independent samples at the same time
When we can use ANOVA?
This is when neither researcher nor participants know the treatment groups
What is a double-blind study?
It is the difference in response due to the occasion on which the treatment is given, independent of the effect due to the treatment
What is period effect in experimental design?
When a person's physical or mental health appears to improve after taking a 'dummy' treatment.
What is a placebo effect?
This type of experimental design is used when we have to study the effects of different factors on a response at the same time
When a Factorial Design is used?
It is also called a rejection error
What is the other name of a type I error
It is the rejection probability of Null Hypothesis when it is true
What is level of significance or alpha value?
This will be improved if we will use cross-over design over parallel design
How to improve the precision of a clinical study?
This is the probability of rejecting null hpothesis when null hypothesis is true
What is alpha error or type 1 error