This Article Full Text (PDF) Alert me when this article is cited Alert me if a correction is posted Services Similar articles in this journal Similar articles in PubMed Alert me to new issues of the journal Download to citation manager Reprints and Permissions Copyright Information Books from ASM Press MicrobeWorld Citing Articles Citing Articles via HighWire Citing Articles via Google Scholar Google Scholar Articles by Alber, S A Articles by Schaffner, D W Search for Related Content PubMed PubMed Citation Articles by Alber, S A Articles by Schaffner, D W Agricola Articles by Alber, S A Articles by Schaffner, D W

 Previous Article  |  Next Article 

Appl Environ Microbiol. 1992 October; 58(10): 3337-3342

Evaluation of data transformations used with the square root and schoolfield models for predicting bacterial growth rate.

Department of Food Science, Rutgers, State University of New Jersey, New Brunswick 08903.

ABSTRACT

A comparison was made between mathematical variations of the square root and Schoolfield models for predicting growth rate as a function of temperature. The statistical consequences of square root and natural logarithm transformations of growth rate use in several variations of the Schoolfield and square root models were examined. Growth rate variances of Yersinia enterocolitica in brain heart infusion broth increased as a function of temperature. The ability of the two data transformations to correct for the heterogeneity of variance was evaluated. A natural logarithm transformation of growth rate was more effective than a square root transformation at correcting for the heterogeneity of variance. The square root model was more accurate than the Schoolfield model when both models used natural logarithm transformation.

This article has been cited by other articles:

• Schaffner, D. W., Ross, W. H., Montville, T. J. (1998). Analysis of the Influence of Environmental Parameters on Clostridium botulinum Time-to-Toxicity by Using Three Modeling Approaches. Appl. Environ. Microbiol. 64: 4416-4422 [Abstract] [Full Text]  
• Allison, D. B., Gorman, B. S., Kucera, E. M. (1995). Unicorn: A Program for Transforming Data to Approximate Normality. Educational and Psychological Measurement 55: 625-629 [Abstract]