The appropriate sample size for a study depends on a number of different factors such as the size of the population you are studying and the level of confidence you want to have in your tests. Generally, larger sample sizes are preferred when dealing with large populations to ensure more reliable results and statistical reliability.
There are statistical methods and formulas available to help determine the optimal sample size based on these factors. SurveyMonkey offers a Sample Size Calculator that can be used to determine the appropriate sample size for your study.
