Puhelinkyselyjä

Puhelinkyselyjä, also known as telephone surveys, are a method of collecting data through phone calls. Interviewers contact respondents and ask them a series of questions from a pre-defined questionnaire. This technique is often employed for market research, public opinion polling, and academic studies.

The process typically involves a sampling strategy to select participants representative of a larger population. Interviewers read questions aloud and record the answers, which can be done manually or using computer-assisted telephone interviewing (CATI) systems. CATI systems streamline the process by displaying questions on a screen, entering responses directly into a database, and often managing call lists and randomization.

Advantages of puhelinkyselyjä include the ability to reach a wide geographic area relatively quickly and cost-effectively compared to face-to-face interviews. Interviewers can also clarify questions and probe for more detailed responses, potentially leading to higher-quality data than some other remote methods. However, response rates can be a challenge, as many people screen calls or are unwilling to participate. The quality of the data can also be affected by interviewer bias or the respondent's willingness to provide truthful answers over the phone. Technological advancements, such as the increasing use of mobile phones and caller ID, continue to shape the landscape of telephone surveys.