reliability (redirected from POFOD)

reliability

[rilī′əbil′itē]

Etymology: L, religare, to fasten behind

(in research) the extent to which a test measurement or device produces the same results with different investigators, observers, or administration of the test over time. If repeated use of the same measurement tool on the same sample produces the same consistent results, the measurement is considered reliable. Compare validity.

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reliability [re-li″ah-bil´ĭ-te]

1. in statistics, the tendency of a system to be resistant to failure.

2. precision (def. 2).

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reliability,

n 1. in research, the reproducibility of an experimental result; the extent to which an experiment, test, or measuring procedure yields the same result during independent, repeated trials.
n 2. the ability of two or more observers to examine the same data and arrive at a similar judgment within predefined bounds concerning the quality of care.

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reliability 

The extent to which multiple measurements of the same thing, made on separate occasions, yield approximately the same results. The reliability between two sets of scores can be assessed by determining the correlation coefficient (test-retest reliability coefficient). See validity.

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reliability

Statistics The extent to which the same test or procedure will yield the same result either over time or with different observers. See Interrater reliability, Test-retest reliability.

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Patient discussion about reliability.

Q. What are the tests and steps involved in diagnosis of breast cancer and are all tests reliable?

A. First symptoms are looked for----- as a lump and pain associated with it and any redness or any nipple discharge. They also look for the medical history and if found for any possibility then it’s evaluated by mammography, but for woman it can give wrong result as they have dense breasts but for men it is well diagnosed. If any breast abnormalities are found during mammography they are confirmed with ultrasound and for women patients this is a better option. For women and symptom evident men for nipple discharge are also looked for nipple discharge test. But these tests do not confirm a cancer and for confirmation a biopsy is required followed by lab test on those biopsy samples. Biopsy is removing of body tissue for further cancer confirmative lab tests which is generally looking under a microscope to indentify the cell type and the type of cancer is known. Their reliability is based on the person operating the instrument and his experience.

Q. hi everyone……I would like to ask everyone how reliable are the self tests that are being carried out for this. hi everyone……I would like to ask everyone how reliable are the self tests that are being carried out for pregnancy? I did try few at home and results are negative but I can see that my symptoms are pretty positive...……. Should I visit the doctor or can I rely on the test that I did myself?

A. They are very reliable, however if they are done too soon or not done properly they can be negative when there is actually a pregnancy. However, they will NOT give a positive if there is NOT a pregnancy.

The best time to take the test is first thing in the morning and using the first urine of the day. It contains the highest level of the pregnancy hormones.

Q. How easy is it to tell about the baby’s birth date? Is it reliable? Hi everyone! My sister is being diagnosed as pregnant. She has a very regular menstrual cycle and her hormone levels are good. How easy is it to tell about the baby’s birth date? Is it reliable?

A. My friend got the due date of birth by doctor and it goes very near by, just the difference was for 5 days from the date. Since you have very regular menstural cycle, it would be easy for the doctors to calculate the birth date. And you can rely on the birth date being calculated by the doctors. It can be calculated easily. You need to find the 1st day of your last period then count back 3 months and add 7 days. Now you get your date.