Final answer:
The statement that a major drawback of using questionnaires for quantitative research is the low response rate is true, affecting the reliability and accuracy of the data collected.
Step-by-step explanation:
A major drawback of using questionnaires to conduct quantitative research is indeed the potential for a low response rate, which is True. The low response rate can undermine the reliability of the research findings because it may not accurately reflect the views of the entire population intended to be studied. Responses to questionnaires are also influenced by the design of the survey, question wording, and the characteristics of those who choose to respond (or not). In addition, respondents may not always provide accurate responses due to various biases, such as social desirability bias or recall errors. Such factors may lead to inaccuracies that detract from the quality of the quantitative data collected.