Time Perspective

"Time perspective is a multidimensional, individual-varying, and age-related construct that is defined as thoughts and feelings about the past, present, and future" (Mello, 2017).


The Adolescent and Adult Time Inventory (AATI; Mello & Worrell, 2007) assesses multiple dimensions of time perspective, including time orientation, time relation, time attitudes, time meaning, and time frequency. The AATI has yielded reliable and valid scores in more than a dozen countries (Mello & Worrell, 2017). The authors invite interested scholars to use the AATI in their research. We permit use of the existing versions and would appreciate being informed of their application and results. Please contact Zena R. Mello (zmello@sfsu.edu) and Frank C. Worrell (frankc@berkeley.edu) if you are interested in translating the AATI into additional languages.


Click here for the Adolescent and Adult Time Inventory and Manual

AATI Around the World





























*In development