TY - JOUR AU - Shaldehi, Ahmad Hedayatpanah PY - 2013 TI - Using Eta \((\eta)\) Correlation Ratio in Analyzing Strongly Nonlinear Relationship Between Two Variables in Practical Researches JO - Journal of Mathematics and Computer Science SP - 213-220 VL - 7 IS - 3 AB - This paper main aim is Eta (\(\eta\)) correlation ratio in analyzing strongly nonlinear relationship between two Variables in breeding area researches. In researches on a relationship that leads two–Variables correlation to determine correlation coefficient if two Variables would Continual (interval, ratio) and parametric uses Pearson torque correlation and if discrete (ordinal, nominal) or nonparametric uses Spearman Brown. And to determine regression line writes Predicting equation as linear relation and if Variables would be more than two uses multivariable regression. But in many cases relationship between Variables is nonlinear that is useful to analyze data use minimizing practice method. This method could expand in many nonlinear senses. But if relationship between two Variables [both continual] would be strongly nonlinear using minimizing is not suitable. That in this correlation as researcher uses Eta (\(\eta\)) correlation ratio instead of correlation coefficient obtains efficient result to specify meaningful difference. This paper refers to common methods inefficiency and defects with an example then refers to (\(\eta\)) advantages, efficiency and how calculating and how using it in practical researches. SN - ISSN 2008-949X UR - http://dx.doi.org/10.22436/jmcs.07.03.07 DO - 10.22436/jmcs.07.03.07 ID - Shaldehi2013 ER - TY - BOOK TI - research method and ststistic , sanjesh and sanjesh takmili publication AU - E. Biabangard PB - PY - 2004 DA - 2004// CY - ID - Biabangard2004 ER - TY - BOOK TI - research of method in educayional and behavioral science AU - B. Jan PB - translators: Pasha sharifi and Narges Talegani – Roshd publication PY - 1998 DA - 1998// CY - ID - Jan 1998 ER - TY - BOOK TI - introductory of statistical in Eta publication AU - P. Tagdari AU - A. N. Manouchehr PB - PY - 1990 DA - 1990// CY - ID - Tagdari1990 ER - TY - BOOK TI - Numeral calculation methods AU - J. H. Maew PB - Translator : Faeze Totonian-Khorasan publication PY - 2000 DA - 2000// CY - ID - Maew 2000 ER - TY - BOOK TI - Research method in psychology and educational sciences Payam Noor University publication AU - A. Delavar PB - PY - 2005 DA - 2005// CY - ID - Delavar2005 ER - TY - BOOK TI - application and contingencies-Roshd publication AU - A. Delavar PB - PY - 2011 DA - 2011// CY - ID - Delavar2011 ER - TY - JOUR TI - plan of tests and statistical methods AU - David R-Boty phibs JO - Translators; Talebi, Alamatsaz and Mousavi- Esfahan university publication PY - 2001 DA - 2001// VL - ID - phibs2001 ER - TY - JOUR TI - statistic and contingency University book publication AU - H. Ranjbaran JO - PY - 2008 DA - 2008// VL - ID - Ranjbaran2008 ER - TY - BOOK TI - quantitative and qualitative methods of research in educational and psychological sciences AU - G. Borg PB - First and second edition – Translators: Ahmad Reza Nasr ana others shahid Beheshti University and (samt) publication PY - 2006 DA - 2006// CY - ID - Borg2006 ER - TY - BOOK TI - Serarching principles in behaviorial sciences. AU - Pasha Sharifi AU - Nagafi Zand PB - First and second volumes PY - 2004 DA - 2004// CY - Ave Noor publication ID - Sharifi2004 ER - TY - BOOK TI - How research? AU - A. hedayatpanah PB - Darya Danesh publication PY - 2009 DA - 2009// CY - ID - hedayatpanah2009 ER - TY - BOOK TI - AU - H. Terry-E. AU - B. Reg PB - Translattors: Mohammad Arabi,Davoud Ezadi-Caltural researches office PY - 2000 DA - 2000// CY - ID - Terry-E.2000 ER -