If individuals with different application durations differ systematically in terms of both observable and unobservable characteristics, right-censoring may potentially create biases for our analysis.
Accordingly, we assume that the freshmen's perception does not differ systematically between the different fields of study.
If a region represents individuated finger movements, then local activity patterns should differ systematically for presses of different fingers.
If hospitals have different admission thresholds, unobserved severity may differ systematically across hospitals [ 28].
However, it is restricted to European safety signals in the early 2000s, and these could differ systematically from safety signals in different regions and time periods.
The values of regional tissue hemoglobin saturation (StO2) from different cerebral oximeters are correlated [ 5], but the absolute values differ systematically.
Because students with alternative instructors may differ systematically from other students, the paper uses two empirical strategies: course fixed effects and a value-added instructor model.
However, we find that slopes relating these variables to firm performance do not differ systematically over countries.
Crystals and glasses also differ systematically in their optical spectra, which are the curves that describe the wavelength dependence of the degree to which the solid absorbs infrared, visible, or ultraviolet light.
However, although the OR's according to the two approaches are very similar, the predicted HP's differ systematically when the terrace plane spacings are varied.
First, migrants from rural to urban areas differ systematically from the left-behind, and their concepts of marriage and childbearing may change because of their urban experiences.
