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Two Linear Correlation Coefficients

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Robert de Levie

Department of Chemistry, Bowdoin College, Brunswick, ME 04011

J. Chem. Educ., 2003, 80 (9), p 1030

DOI: 10.1021/ed080p1030

Publication Date (Web): September 1, 2003

Section:

History, Education, and Documentation

Abstract

In fitting data to a straight line, many calculators and computer programs display a ’linear correlation coefficient’. Two types of linear correlation coefficients are discussed, one often useful in chemical calculations, the other usually not.

Keywords (Audience):

High School / Introductory Chemistry

Keywords (Pedagogy):

Calculator-Based Learning

Keywords (Subject):

Chemometrics

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This article has been cited by 2 ACS Journal articles (2 most recent appear below).

Collinearity in Least-Squares Analysis
Robert de Levie
Journal of Chemical Education2012 89 (1), 68-78
- Collinearity in Least-Squares Analysis
  Robert de Levie
  Journal of Chemical Education2012 89 (1), 68-78
  How useful are the standard deviations per se, and how reliable are results derived from several least-squares coefficients and their associated standard deviations? When the output parameters obtained from a least-squares analysis are mutually ...
  Abstract | Full Text HTML | Hi-Res PDF | PDF w/ Links
First-Order or Second-Order Kinetics? A Monte Carlo Answer
Joel Tellinghuisen
Journal of Chemical Education2005 82 (11), 1709
- First-Order or Second-Order Kinetics? A Monte Carlo Answer
  Joel Tellinghuisen
  Journal of Chemical Education2005 82 (11), 1709
  In chemical kinetics, data for the concentration [A] as a function of time can be analyzed by least-squares fitting to the appropriate expression for the integrated rate law. The problem of discriminating between first and second order in such analyses is ...
  Abstract | Hi-Res PDF | PDF w/ Links