Study 1 investigated whether lack of sleep influences people's information processing using a college sample and paper and pencil measures. Study 2 replicated the study using a convenience sample gathered from a sleep clinic (of middle-aged and elderly adults), and measured information processing using fMRI images. Study 3 conducted a third study on sleep and information processing in school children, using behavioral observations and verbal responses to several information processing questions. Studies 1 and 2 were consistent with hypotheses, while Study 3 found no differences. This series of studies would likely be high in which of the following?
A) robustness
B) ecological validity
C) relevance
D) A and B
E) A and C
F) none of the above

Question

Quizplus · Accepted Answer

The series of studies shows high robustness because it replicates findings across different populations and methodologies, indicating that the results are reliable and not dependent on specific conditions. It also demonstrates relevance as it addresses an important aspect of human cognition (information processing) and its relationship with sleep, which is a significant factor in many people's lives. Ecological validity is not necessarily high across all studies, as the settings (e.g., sleep clinic, school) and methods (e.g., fMRI, behavioral observations) vary in how naturally they reflect everyday situations.

Study 1 Investigated Whether Lack of Sleep Influences People's Information