Örneklem - SampleSize

When designing a study, most researchers first ask, "How many subjects should I get for this study?" answers the question. Especially in medical research, the correct determination of the sample size is one of the first and most important stages of the research.

The power of the findings obtained with a sample size to be determined in the wrong number may be low and may require repetition of the research. A correctly calculated sample size will not only have sufficient power for a study, but will also avoid wasting time and cost, and will not expose patients to unnecessary experimental treatment.

With this mobile application, researchers will be able to easily calculate the number of samples they will use in their studies and use the report they received from the mobile application in their ethics committee applications.

Development studies continue to make the mobile application a popular application used internationally.

With the mobile application, the required sample size for the following statistical tests, which are widely used in many researches, can be calculated.

* One sample test of means
* Two-sample t-test for independent groups (Student's t-test)
* Paired samples t-test for dependent groups
* One sample test of proportions
* Z-test for two independent ratios (Two sample test of proportions)
* One-way analysis of variance (ANOVA)
* Correlation analysis for numerical variables (Pearson / Spearman)
* Chi-square test for categorical variables (Chi-square)
* Prevalence/Survey studies