Quotes About Measurement

MSE has that property—and it is the only definition of overall error that has it. In figure 6, we have computed the value of MSE in the set of five measurements for ten possible integer values of the line's true length.

Similarly, fingerprint examiners and physicians sometimes disagree with themselves, but they do so less often than they disagree with others. In every case we reviewed in which the share of occasion noise in total system noise could be measured, occasion noise was a smaller contributor than were differences among individuals.

Please imagine a ladder with steps numbered from zero at the bottom to 10 at the top. The top of the ladder represents the best possible life for you and the bottom of the ladder represents the worst possible life for you. On which step of the ladder would you say you personally feel you stand at this time?

In the words of one observer, "the reliance on the patient's subjective symptoms, the clinician's interpretation of the symptoms, and the absence of objective measure (such as a blood test) implant the seeds of diagnostic unreliability of psychiatric disorders." In this sense, psychiatry may prove especially resistant to attempts at noise reduction.

demonstrated experimentally, but few can actually be measured.

Failures of detection followed the same inverted-V pattern as the dilating pupil. The similarity was reassuring: the pupil was a good measure of the physical arousal that accompanies mental effort, and we could go ahead and use it to understand how the mind works.

Risk" does not exist "out there," independent of our minds and culture, waiting to be measured. Human beings have invented the concept of "risk" to help them understand and cope with the dangers and uncertainties of life.

Wann immer einen die Dinge erschreckten, sei es eine gute Idee, sie zu messen.

The first step is to measure whatever can be easily measured. This is OK as far as it goes. The second step is to disregard that which can't be easily measured or to give it an arbitrary quantitative value. This is artificial and misleading. The third step is to presume that what can't be measured easily really isn't important. This is blindness. The fourth step is to say that what can't be easily measured really doesn't exist. This is suicide.

numerical precision is the very soul of science, and its attainment affords the best, perhaps the only criterion of the truth of theories and the correctness of experiments.

Now the mental test of any variety is one of the prime voodoo fetishes of our time, so you may have to argue a little to find out the results of the tests;

One degree of longitude equals four minutes of time the world over, but in terms of distance, one degree shrinks from sixty-eight miles at the Equator to virtually nothing at the poles.

The zero-degree parallel of latitude is fixed by the laws of nature, while the zero-degree meridian of longitude shifts like the sands of time. This difference makes finding latitude child's play, and turns the determination of longitude, especially at sea, into an adult dilemma—one that stumped the wisest minds of the world for the better part of human history.

Thus the metric system did not really catch on in the States, unless you count the increasing popularity of the nine-millimeter bullet.

James caught and measured the size of hundreds of wild, foraging buff-tails in and around Southampton, and found that the average size and tongue length varied greatly depending on which flower he caught them on.

systolic blood pressure is a much better indicator of stress than heart rate.)

Stress acclimatization is about measuring precise doses of stress followed by waves of recovery and then repeating these cycles very specifically. There must be time for adaptation to take place and there must be enough training, repeated over time, to help it stick as well as reinforcing the conditioning.

There is no person in the firm who is really charged with protecting the brand equity. Those nominally in charge of the brand,perhaps termed brand managers or product marketing managers, are in fact evaluated on the basis of short-term measures.

had been a constant source of recrimination and criticism. He measured all people against his own unattainably anal standard. It was a standard which was too pathetically low to be measured, but which through the microscope of his own small mind he saw as perfect. ?But Peter, unencumbered by morality, held nobody to any standard. He knew that where there was no good, there could be no standard.

We now enter the Twilight Zone of psychology. Hundreds of theories of personality exist, but no one has yet successfully identified, or even defined, what personality is (Hall and Lindzey, 1957). Thus, there exists a myriad of psychological tests that measure something, but no one seems to quite know what it is.

REFERENCE RANGES FOR TRIGLYCERIDES Triglycerides (mg/dL) Category Greater than 499 Very High 200 to 499 High 150 to199 Borderline high Less than 150 Normal Target Range: 50 to 100 mg/dL

REFERENCE RANGES FOR TOTAL CHOLESTEROL Total Cholesterol (mg/dL) Category Greater than 239 High 200 to 239 Borderline high Less than 200 Desirable Target Range: 150 to 200 mg/dL

A gourmet who thinks of calories is like a tart who looks at her watch.

The opinion seems to have got abroad, that in a few years all the great physical constants will have been approximately estimated, and that the only occupation which will be left to men of science will be to carry on these measurements to another place of decimals.