postulated by Barry J. Iraser and Peter Charles Taylor, a survey containing thirty statements that pupils rank via the use of a five-point likert scale, spanning from almost never to almost always. It determines the level to which a certain class's climate is in alignment with constructive epistemology and helps educators to review their epistemological presumptions and reform their educational practices.

CONSTRUCTIVIST LEARNING ENVIRONMENT SURVEY (CLES): "CLES exams often serve a purpose in formative years to acclimate children to the likert scale."
Cite this page: N., Pam M.S., "CONSTRUCTIVIST LEARNING ENVIRONMENT SURVEY (CLES)," in, April 7, 2013, (accessed October 30, 2020).