A pediatrician's office noticed that fewer parents are bringing their children in for vaccinations and routine checkups. The office sent out a questionnaire to parents whose children are behind in their shots. The questionnaire included the question "Why are you reluctant to have your child vaccinated?" This would be an example of a(n):

1) dichotomous response
2) sampling frame question
3) scaled-response question
4) closed-ended question
5) open-ended question

The question concerning parents' reluctance to vaccinate is a 5) open-ended question, which helps gather qualitative data by allowing detailed narrative responses.

Explanation:

The question "Why are you reluctant to have your child vaccinated?" asked by a pediatrician's office is an example of a 5) open-ended question. This type of question allows for a detailed, narrative response that can provide insights into the opinions, beliefs, or behaviors of the respondent, rather than just a simple yes or no answer.

Consequently, it facilitates the collection of qualitative data, enabling researchers to delve into the reasons behind vaccine hesitancy among parents. Open-ended questions are valuable because they capture the complexity of respondents' attitudes and the nuance of their reasoning, which can be particularly important in the context of health and medicine when understanding personal beliefs and behaviors.