I

imprecision

Imprecision is a term to describe the dispersion or spread of a set of values about the mean value of a normal or gaussian distribution. It is usually expressed as a SD or CV.

inactive rule

A SPC rule with a status of off.

InstantQC™

An instant laboratory program option for comparing point data submitted via the Bench Review to other laboratories' data on demand. InstantQC™ Reports and Charts are available on www.QCNet.com.

InstantQC™ Chart

When sending data to the Unity™ Interlaboratory Program from Bench Review, the reviewed data points appear on InstantQC™ Reports and Charts on www.QCNet.com after a short processing time. The InstantQC™ Chart plots your data points for your selected date range against your selected consensus group's mean and ±3SD range.

InstantQC™ Report

When sending data to the Unity™ Interlaboratory Program from Bench Review, the reviewed data points appear on InstantQC™ Reports and Charts on www.QCNet.com after a short processing time. The Comparison Statistics Shown are:

• SDI: a measurement of your bias compared to your selected consensus group.
• Bias: a measurement of how far your observed value is from the target value.
• TEB%: a measurement of your total error (bias and imprecision) compared to the total allowable error limits based on biological variation.

interlaboratory

Comparative results between laboratories used to determine values and assess test methods.

intralaboratory

Within a single laboratory.