A Reliable Data Collection Instrument Is One That

question 36

Multiple Choice

A reliable data collection instrument is one that:

• A) was pilot tested within six months of use.
• B) is used over again.
• C) has been used by others.
• D) collects the data it's meant to collect every time it's used.

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Definitions:

Standard Deviation

A metric that gauges the spread or deviation of a dataset in relation to its average, showing the extent to which the data points are scattered.

Mean

The average of a set of numbers, calculated by dividing the sum of all the values by the number of values.

Median

The middle value in a sorted list of numbers, which divides the data set into two halves.

IQR

Interquartile range, a measure of statistical dispersion being the difference between the 75th and 25th percentiles, or quartiles, in a data set.