Evelyn Claims That Out Of The 1000 Surveys That She Sent By Mail To Random Addresses Around The City Only 121 Were Retu 1 (137.76 KiB) Viewed 73 times
Evelyn claims that out of the 1000 surveys that she sent by mail to random addresses around the city, only 121 were returned. What is an appropriate comment regarding this response rate ? The sample could be biased because there was no monetary incentive to respond O No concern because more than 10% have responded The surveys were sent to random addresses so the sample can be considered representative There is potential bias if the subjects responding have a systemic characteristic (relevant to the study) not shared by non-respondents
Meta-Analysis of multiple studies is often performed to assess the status of current research. Which best describes Meta-Analysis? Analyse the methods of statistical analysis Search for trends across different studies (that may have different procidures, sample sizes, types of control, and metrics) Establish external validity O Analyse very large studies
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