The raw score from the NFI-Stroke components is a sufficient statistic such that a simple summed score can provide an ordinal estimate of the persons (component) level of fatigue.
Second, the total amount of physical activity performed by the respondents, expressed in minutes per day, or the total time spend on each activity was not incorporated in each persons' component score.
The associations were also consistently stronger among persons with individual components of MetS (such as abdominal obesity, diabetes, hypertension, or dyslipidemia) than among persons without the components, although the differences were not statistically significant.
To take into account within-person variations caused by day-to-day fluctuations and seasonal variations, we "de-attenuated" the Spearman's correlation coefficients using the within- and between-person components of variation from the 24-HRs [15].
In the first step, we used an unconditional means model to partition and quantify the total variability in unmet needs into its within- and between-persons components, without regard to time.
Because two blood samples were obtained from a subset of exposed workers, we also estimated within-person and between-person components of variance for the three albumin adducts.
TWS has items describing the content of therapist interventions, such as dynamic conflict components (anxiety, defense, impulse/motives) and person components (parents, others) [ 31].
If the ratio of the within-person to the between-person components of variance of the independent variable is large, then significant attenuation results when estimating the slope of the line.
Finally, the union variables have a similar effect on the firm component of the inter‐industry differential but have, now, virtually no effect on the person component.
The person component of the differentials is mostly related to skills of the workforce, be it education or the lack thereof.
As explained in the analytical strategy, the four health-related variables are included as a between-person component, the person-specific mean (m), and a within-person component, the deviation from the person-specific mean (d).
