Nonresponseilmiöön

Nonresponseilmiöön, a Finnish term, translates to "nonresponse phenomenon" in English and refers to the issues that arise when individuals selected for a survey or study do not participate. This can occur at various stages, from initial contact to providing complete answers. Nonresponse can significantly impact the accuracy and generalizability of research findings.

There are several reasons why nonresponse might occur. Unit nonresponse happens when an entire respondent unit, such as a household or individual, is not included in the survey. Item nonresponse, on the other hand, occurs when a respondent participates but fails to answer certain questions. Factors contributing to nonresponse can include respondent's unwillingness to participate, inability to be reached, or logistical difficulties.

The consequences of nonresponse are a major concern for researchers. If nonrespondents systematically differ from respondents, the resulting sample will not be representative of the target population. This can lead to biased estimates and flawed conclusions. Various methods are employed to minimize nonresponse, such as careful survey design, effective interviewer training, and follow-up procedures. Statistical techniques are also used to adjust for nonresponse after data collection, aiming to correct for potential biases. Understanding and addressing nonresponseilmiöön is crucial for maintaining the integrity of research.