Which of the following is not mentioned in the text as a method used to improve response rates? a. prior notification b. incentives c. follow-up d. personalization e. all of these methods are used to improve response rates.

Prior notification

Explanation:

Improve the response rate is commonly related to the survey method. response rate always refers to the percentage of eligible sample units that participate in the survey. To ensure that you are measuring your sample unit size is extremely very important because further, it affects the study result and generalization.  

There are many response rate cost raise your survey response rate that can boost your response rate:

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answer; genetics;