Further research is needed to clarify whether the child's age has a systematic influence on the discrepancy between child and parent reports of QoL.
However, without sufficient knowledge concerning the perception of objects' size, we will not be able to understand completely the perception of some related properties, such as the weight of objects, since it has been shown that size has a systematic influence on other percepts (e.g., the size weight illusion).
For example, our results indicate that the accounting practices of firms seem to have a systematic influence.
The Contextual component is restricted to representing only those aspects of the context of a given utterance which have a systematic influence on the form of that utterance.
Our findings showed that side does not have a systematic influence on the prevalence of OC.
If there is a "hidden parameter," such as a stage in the cell cycle, it will have a systematic influence on the expression levels, and thus increase the variance for the genes taking part in it.
In the previous section, we showed that horizontal gaze position does have a systematic influence on pupil size as measured by a video-based eye-tracking system (hereafter, measurement error).
Total mitochondrial mRNA expression was not significantly different between the four cell lines (one-way ANOVA P = 0.6) indicating that differences in the genetic background of our cells do not have a systematic influence on total mitochondrial gene expression.
That is, no other characteristic of the persons being measured (for example gender or disease group) or the assessment context should have a systematic influence on the measurement results [ 4].
Through our joint consideration of TConsensus and TOptimal, we find that topology does have a systematic influence on inferred divergence times for nodes of interest (Table 3), but that for the present data set this influence differed in direction across methods and was generally insignificant when confidence/credibility intervals were considered.
Similarly, batch effects, whereby external factors, for example, time or technician, have a systematic influence on experimental outcomes across a condition, have been seen in many high-throughput technologies, and can cause confounding without proper study design and analysis techniques [ 4, 10].
