CLT EXAM SCRIPT QUESTIONS AND
ANSWERS COMPLETE PRACTICE
RESOURCE VERIFIED
●● When comparing an instrument to its peer group, which statistic
provides the most useful information regrind its ACCURACY
Answer: SDI- standard deviation index
●● When comparing an instrument to its peer group, which statistic
provides the most useful description of OVERALL IMPRECISION
Answer: CVR
●● 2(2s)
Answer: Detects systematic error
●● 1(3s)
Answer: Detects rondom error
●● If the light source on an instrument is gradually weakening, it could
contribute to what type of error?
Answer: Systematic error
, ●● If you change reagent on the instrument and your control results
demonstrates a sudden and consistent increase in value, this phenomena
is
Answer: A shift in performance due to systematic error
●● If one of two control values within a single test run is between 2s and
3s on the positive side, you should
Answer: Accept the run if no error can be detected
●● Dilution
Answer: Decrease concentration by adding water/solvent
●● Solute
Answer: Substance being dissolved
●● Solvent
Answer: The substance in which the solute dissolves in
●● Ratio
Answer: Comparison of solute to solvent
●● Example of ratios to dilutions (3/27)
Answer: Dilution- 1/9
ANSWERS COMPLETE PRACTICE
RESOURCE VERIFIED
●● When comparing an instrument to its peer group, which statistic
provides the most useful information regrind its ACCURACY
Answer: SDI- standard deviation index
●● When comparing an instrument to its peer group, which statistic
provides the most useful description of OVERALL IMPRECISION
Answer: CVR
●● 2(2s)
Answer: Detects systematic error
●● 1(3s)
Answer: Detects rondom error
●● If the light source on an instrument is gradually weakening, it could
contribute to what type of error?
Answer: Systematic error
, ●● If you change reagent on the instrument and your control results
demonstrates a sudden and consistent increase in value, this phenomena
is
Answer: A shift in performance due to systematic error
●● If one of two control values within a single test run is between 2s and
3s on the positive side, you should
Answer: Accept the run if no error can be detected
●● Dilution
Answer: Decrease concentration by adding water/solvent
●● Solute
Answer: Substance being dissolved
●● Solvent
Answer: The substance in which the solute dissolves in
●● Ratio
Answer: Comparison of solute to solvent
●● Example of ratios to dilutions (3/27)
Answer: Dilution- 1/9
