Question 1

Proportional error in a method is characterized by which of the following?

Accepted Answer

A)  The magnitude of the error stays the same over a wide concentration range. 
B)  The magnitude of the error increases as the concentration of analyte increases. 
C)  The magnitude of the error decreases as the concentration of analyte increases. 
D)  The magnitude of the error is inversely proportional to concentration. 
A)  The magnitude of the error stays the same over a wide concentration range. 
B)  The magnitude of the error increases as the concentration of analyte increases. 
C)  The magnitude of the error decreases as the concentration of analyte increases. 
D)  The magnitude of the error is inversely proportional to concentration.

Question 2

Deming's linear regression analysis attempts to:

Accepted Answer

A)  Compensate for shortcomings of Passing and Bablok regression analysis. 
B)  Overcome shortfalls in the least squared method. 
C)  Overcome shortfall due to quality control failures. 
D)  Overcome issues related to the interpretation of a Student-t test. 
A)  Compensate for shortcomings of Passing and Bablok regression analysis. 
B)  Overcome shortfalls in the least squared method. 
C)  Overcome shortfall due to quality control failures. 
D)  Overcome issues related to the interpretation of a Student-t test.

Question 3

Which of the following is an example of nominal type data?

Accepted Answer

A)  Numbers applied to numeric variables for example, cholesterol result of 250 mg/dL 
B)  Numbers applied to nonnumeric variables for example blood types could be coded as group O=1, group A= 2 etc. 
C)  Numbers that are discrete and ordered for example, 4 = most severe injury, 2 = a moderately severe and 1 = a minor injury 
D)  Arithmetic mean 
A)  Numbers applied to numeric variables for example, cholesterol result of 250 mg/dL 
B)  Numbers applied to nonnumeric variables for example blood types could be coded as group O=1, group A= 2 etc. 
C)  Numbers that are discrete and ordered for example, 4 = most severe injury, 2 = a moderately severe and 1 = a minor injury 
D)  Arithmetic mean

Question 4

An important difference between parametric statistics and nonparametric statistics is that nonparametric statistics is distribution free, whereas parametric statistics:

Accepted Answer

A)  Assumes linearity. 
B)  Is sensitive to gender and age. 
C)  Presumes a Gaussian distribution. 
D)  Accepts all outliers. 
A)  Assumes linearity. 
B)  Is sensitive to gender and age. 
C)  Presumes a Gaussian distribution. 
D)  Accepts all outliers.

Question 5

Which statement listed below is a reason to reject an analytical run?

Accepted Answer

A)  One control result exceeds above +1 standard deviation and the second control result exceeds -1 standard deviation from the mean. 
B)  Two consecutive control results exceed 2 standard deviations above or below the mean. 
C)  Four control results steadily increase in value but are less than ±1 standard deviation from the mean. 
D)  Three consecutive control results exceed plus or minus 1 standard deviation from the mean. 
A)  One control result exceeds above +1 standard deviation and the second control result exceeds -1 standard deviation from the mean. 
B)  Two consecutive control results exceed 2 standard deviations above or below the mean. 
C)  Four control results steadily increase in value but are less than ±1 standard deviation from the mean. 
D)  Three consecutive control results exceed plus or minus 1 standard deviation from the mean.

Proportional error in a method is characterized by which of the following?

Deming's linear regression analysis attempts to:

Which of the following is an example of nominal type data?

An important difference between parametric statistics and nonparametric statistics is that nonparametric statistics is distribution free, whereas parametric statistics:

Which statement listed below is a reason to reject an analytical run?

Laboratory Basics

Safety in the Clinical Chemistry Laboratory

Instrumentation, Laboratory Automation, and Informatics

Immunoassays

Molecular Diagnostics

Carbohydrates

Lipids

Proteins

Enzymes

Nonprotein Nitrogen Questions

Body Water and Electrolyte Homeostasis

Blood Gases, PH, and Acid-Base Balance

Mineral and Bone Metabolism

The Endocrine System

Gastrointestinal Function

Pancreas

Cardiac Function

Liver

Iron, Porphyrins, and Hemoglobin

Therapeutic Drug Monitoring

Toxic Substances

Nutrition and Vitamins

Tumor Markers

Geriatrics

Pediatrics

Filters

Exam 3: Laboratory Statistics, Method Development and QC

Proportional error in a method is characterized by which of the following?

Deming's linear regression analysis attempts to:

Which of the following is an example of nominal type data?

An important difference between parametric statistics and nonparametric statistics is that nonparametric statistics is distribution free, whereas parametric statistics:

Which statement listed below is a reason to reject an analytical run?

Laboratory Basics

Safety in the Clinical Chemistry Laboratory

Instrumentation, Laboratory Automation, and Informatics

Immunoassays

Molecular Diagnostics

Carbohydrates

Lipids

Proteins

Enzymes

Nonprotein Nitrogen Questions

Body Water and Electrolyte Homeostasis

Blood Gases, PH, and Acid-Base Balance

Mineral and Bone Metabolism

The Endocrine System

Gastrointestinal Function

Pancreas

Cardiac Function

Liver

Iron, Porphyrins, and Hemoglobin

Therapeutic Drug Monitoring

Toxic Substances

Nutrition and Vitamins

Tumor Markers

Geriatrics

Pediatrics

Filters