Objectives To perform a systematic review of the frequency of (preventable) adverse events (AE/PAE) and to analyse contributing factors, such as sample size, settings, type of events, terminology, ...

Usability testing is recommended for improving interactive design, but discovery of usability problems depends on the number of users tested. For estimating required sample size, usability researchers ...

Likert types of rating scales in which a respondent chooses a response from an ordered set of response options are used to measure a wide variety of psychological, educational, and medical outcome ...

In research studies, the sample size plays a crucial role in ensuring accurate outcomes and insights. The sample size refers to the number of participants or observations included in a study.