Linear Regression Analysis (by LabCE)

2.5 P.A.C.E. contact hour(s)

(based on 163 customer ratings)

Authors: Mary Ann Fiene, MT(ASCP), Alan K. Reichert, PhD.
Reviewer: Barbara Cebulski, MS, MLS(ASCP)CM

Course provided by LabCE.

The purpose of this course is to demonstrate how to use linear regression to predict the value of one variable, given the value of the other variable and the experimental data concerning the relationship between the variables.

See more courses in: Quality Control & Lab Math

Included In These Course Packages

Continuing Education Credits

P.A.C.E.® Contact Hours (acceptable for AMT, ASCP, and state recertification): 2.5 hour(s)
Course number 578-088-16, approved through 11/30/2018
Florida Board of Clinical Laboratory Personnel Credit Hours - Supervision/Administration, Quality Control/Quality Assurance, and Safety: 2.5 hour(s)
Course number 20-547761, approved through 9/1/2018

Objectives

  • Define linear regression and explain how it is used.
  • Given data points that fall on a straight line, find the equation for the line.
  • Use the regression equation to predict the value of a dependent variable give the value of the independent variable.
  • Explain what is meant by the phrase "line of best fit."
  • Given a set of data, determine the best fit using the least squares method.
  • Define and calculate standard error of estimate.
  • Explain the difference between a, alpha, b, and beta, as applied to regression analysis, and describe why confidence intervals are calculated for the slope and y-intercept.

Customer Ratings

(based on 163 customer ratings)

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Course Outline

  • Introduction to Regression Analysis
      • Predicting a Value
      • A Regression Analysis Example
      • A Regression Analysis Example, continued
      • Calculating the Y-Intercept
      • Prediction Using the Resulting Equation
  • Introduction to Least Squares Method of Best Fit
      • Introduction to Least Squares Method
      • The Least Squares Line
      • Standard Error of Estimate
  • Least Squares Calculation
      • Determining the Least Squares Line
      • Formulae for Determining the Slope and Intercept
      • Calculating the Standard Error of Estimate
      • Correlation Coefficient
      • Example Regression Line Calculation
      • Using the Least Squares Formulae
      • Determining Se and r2
      • Data for Questions
  • Calculation of Confidence Intervals for Least Squares
      • Confidence Intervals for Slope and Intercept Parameters
      • Calculating Confidence Intervals
      • Formulae for Confidence Intervals
  • References
      • References

Additional Information

Level of instruction: Intermediate
 
Intended audience: This course is appropriate for laboratory professionals, and for students in clinical laboratory science programs who want a review of the statistics that are analyzed for assessment of quality control.
 
Author Information:  Mary Ann Fiene, MT(ASCP), has authored several articles on the subjects of curriculum development, competency evaluation, and job restructuring. Her articles have appeared in the Journal of Allied Health, American Journal of Medical Technology (now published as Clinical Laboratory Science), and Medical Laboratory Observer. 

Ms. Fiene was affiliated as an educator with the Kettering Medical Center School of Medical Technology.
 
Alan Reichert, PhD, is a professor of finance at Cleveland State University in Ohio.
 
About the Course: This course is part of a series of courses adapted for the web by MediaLab Inc. under license from Educational Materials for Health Professionals Inc. Dayton OH, 45420. Copyright EMHP. The course was reviewed and revised in 2012. 

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