Method evaluation and quality management

Quality Management(QM)

• refers to the overall process used to ensure that laboratory results meet the requirements for health care services to patients 

Descriptive statistics

The methods used to summarized data are termed _______ because they describe what the magnitude of results is and how the data points differ from one another

• mean

• median

• mode

Most commonly used descriptions of the center:

Mean

• the most widely recognized measure of central tendency

Average value (also referred to asty arithmetic mean)

Mean is also called?

Mean

• calculated by adding the values of all the individual data points and dividing that sum by the total number of data points

Median

An alternative measure of central tendency, which divides all dsta points exactly in half, either one half bring higher snd one half lower

50th percentile

Mean is also called?

Nonparametric method

Mean

It is not calculated from a formula because it is taken from straight count of the data points, so it is termed?

Median

It is the middle of the data after the data have been rank ordered. It is the value that divides the data in half.

Mode

The third commonly used measure of central tendency

Mode

which is the most common value

mode

is not a very useful measure for describing or comparing data sets, but it does have a role in understanding when a data set consists of two or more different populations that result in more than one

bimodal population.

If two separate subpopulations are present, it is called a _____