Cognitive function for each subject was assessed one time, usually in the second year of the study, and evaluated with the corresponding bone and anthropometric measurements conducted at that time, or with the cumulative average of other variables of interest.
The latter study investigated a community sample of 15-year-old adolescents; however plasma cortisol was assessed one time only in the afternoon and awakening time was not controlled for.
Since 2009, the German engineering giant has been publishing reports assessing one region at a time, starting with Europe and working through Latin America, the US and Canada, Africa and, last year, Asia.
However, the studies of potential mechanisms have often been limited to assessing one mechanism at the time, which increases the likelihood of unmeasured confounding effects and misses the opportunity to study these potentially interrelated mechanisms in coherence.
These findings highlight the selective nature of the present study into maternal aging: in assessing one mouse type (CD1), at one time point (12 months) using one type of procedure (in vitro maturation performed without supporting cumulus cells and often following imaging).
Each chosen parameter on Table 5 was assessed one at a time varying its value from −100% to +200% to understand its influence on the output.
The bulk of existing research on intervention effectiveness has used analysis techniques that treat the sample as a homogeneous group, and assess behavioral outcomes with one-dimensional measures (e.g. number of unprotected sex acts); even when the measures are specific (e.g., number of unprotected sex acts with casual partners), they are assessed one at a time.
First, patient mortality was the measured outcome; second, the effect of various prognostic factors on mortality was assessed one predictor at a time.
Patients in the cross-sectional study were assessed at one time point only, whereas patients in the longitudinal study were assessed at pre-treatment baseline, and at 2 weeks and 3 months after treatment with anti-TNF-α.
Participants included 28 individuals with ASD and 33 TD controls matched on age and IQ and assessed at one time point.
