What to Measure and How. Measurement generally refers to the assigning of numbers to indicate different values of variables. If your research involved determining if there was a relationship between height and weight of dogs, it would make sense to measure the height and weight of dogs using a scale.
From this, the lower end of the operating range is determined, which translates to: Minimum weight = 2000 Ã Repeatability (S.D.) Further, 3) When the S.D. obtained is smaller than 0.41d (d = scale interval), that S.D. is replaced with. 0.41d. Minimum weight is the minimum sample quantity required to perform an accurate quantitative. analysis with the measurement error of the balance used taken into account. If the sample quantity.
Spring scales. A spring scale measures weight by reporting the distance that a spring deflects under a load. This contrasts to a balance, which compares the torque on the arm due to a sample weight to the torque on the arm due to a standard reference weight using a horizontal lever. Spring scales measure force, which is the tension force of constraint acting on an object, opposing the local force of gravity.