Figure 1 resumes the research design, and the variables assessed during the different times of measurement. (frontiersin.org)
Instead, what we have is multiple satellites (we use 14 of them for the UAH processing) with relatively short lifetimes (2 to 16 + years), most of which have decaying orbits which causes the local time of measurement to slowly change over the years, slightly different layers sampled by the earlier (pre-1998) MSU instruments compared to the later (post-1998) AMSU instruments, and some evidence of small calibration drifts in a few of the instruments. (wattsupwiththat.com)
The aim of this second study of the programme, based on 5 years of data collection, is to explore the longer term impact of SET on various aspects of the mental health and health - related behaviours of senior school students (Grades 5 — 9 at time of measurement). (academic.oup.com)