Area measurements are also possible with contact measurement systems. Interferometry is still fundamental in establishing the calibration chain in length measurement. Reproducibility is one component of the precision of a measurement or test method. Stellar parallax remains the standard for calibrating other measurement methods. This results in a change in impedance versus the frequency used in the measurement. Variability due to errors of measurement. The term especially refers to a greatness beyond all possibility of calculation, measurement, or imitation. Views regarding the role of measurement in quantitative research are somewhat divergent. Some meteorologists dispute the accuracy of the 1913 temperature measurement. Hill coefficients vary depending on species and laboratory measurement settings. Different statistics are appropriate for different types of measurement. T provides an objective reverberation time measurement. These are used in sensitive electronic measurement systems. The theodolite is an instrument for the measurement of angles. Evidence for point of care lactate measurement over usual methods of measurement, however, is poor.