The Likert scale was developed by psychologist Rensist Likert in 1932. The object of the scale was to measure a respondent's opinion or attitude towards any given subject. The original scale was a 7-point agreement scale used to measure respondents' agreement with a variety of statements. Today, a Likert scale is typically used to define any 7-item, bipolar scale. QuestionPro has a number of pre-loaded 7-item Likert-style scales and 5-item bipolar scales (also often referred to as Likert scales). Read more about Likert Scale Questions.
To access the various scales available, use the Answer Library.