Glossary L

Lightheadedness is defined as a feeling you are "going to faint." Lightheadedness is medically distinct from dizziness, unsteadiness, and vertigo. Please see Dizziness, Unsteadiness, and Vertigo.

Read more …

Lightness is perception of reflectance. Often objects with high reflectance are perceived as white and objects with low reflectance are perceived as gray or black.

Lightness constancy refers to the constancy of person's perception of an object’s lightness under different intensities of illumination.

Like-me-then-help-me technique refers to the strategy to increase compliance, based on the fact that people are more likely to assist others they find appealing than others they do not find appealing

Read more …

Likelihood principle is the idea proposed by Helmholtz that humans perceive the object that is most likely to have caused the pattern of stimuli they have received.

Read more …

Likert format is defined as a format for attitude scale items in which subjects indicate their degree of agreement to statements using these categories : strongly disagree, disagree, neither disagree nor agree, agree, strongly agree.

Likert scale is defined as a rating scale presented as a horizontal line divided into categories so that participants can circle a number or mark an X at the location corresponding to their response. Likert scale is an approach to attitude measurement in which respondents indicate the strength of their agreement or disagreement with various statements.

Read more …

Likert-type scale refers to an attitude measurement technique that requires respondents to indicate the extent of their agreement or disagreement with several statements on an issue