Ecological Momentary Assessment (EMA) may increase accuracy of data compared with retrospective questionnaires by assessing behaviours as they occur, hence decreasing recall biases and increasing ecological validity. This study examined the feasibility and concurrent validity of an EMA tool for adolescents with High-Functioning Autism Spectrum Disorders (HFASD). Thirty-one adolescents with HFAS...

Two studies assessed construct and concurrent validity of two scales designed to measure reinforcement sensitivity. non-probabilistic samples college students from Mexico City were used. The first study showed that while the BIS/BAS may possess validity, they lack in one; conversely, SPSRQ did not show but evidence one. Convergent was using self-report questionnaires. second BAS predict respons...

Scales to measure helplessness and hopelessness were found to have good reliability and concurrent validity and were significantly correlated with suicidal ideation.