The rationale for the design of the Time and Space Questionnaire is outlined in the following articles:
Sinha, Chris, Silva Sinha, Vera da, Zinken, Jörg and Sampaio, Wany (2011). When time is not space: The social and linguistic construction of time intervals and temporal event relations in an Amazonian culture. Language and Cognition 3(1): 137-169 doi 10.1515/langcog.2011.006