Ecological momentary assessment of cognitive functioning among older adults: The relationship between self-reported and test-based cognitive functioning

Establishing within-person reliability is crucial when selecting cognitive assessments in EMA research. Furthermore, momentary measures of test-based and self-reported cognitive functioning were not consistently associated and should not be used interchangeably. Beyond the empirical findings, this study highlights key practical lessons for cognitive EMA research, including the need to consider practice effects, task difficulty, the number of trials, and the outcomes that are used.