Abstract Sensitivity to scope in nonmarket valuation refers the property that people are willing pay more for a higher quality or quantity of public good. Establishing significant sensitivity has been an important check validity and point contention decades stated preference research, primarily contingent valuation. Recently, researchers have begun differentiate between statistical economic sig...

Discrete choice experiments (DCEs) are frequently used to estimate and forecast the behavior of an individual's choice. DCEs based on stated preference; therefore, underlying experimental designs required for this type study. According psychologists, DCE consist a small number sets with limited size in alternatives within set increase response efficiency questionnaire. Even though algorithmic c...