Therefore all the alternatives can be ranked according to the value of the weighted correlation coefficients
so that the best alternative can be selected.
The trends shown in Figures 5 and 11 do not differ as much as in Figure 23, but the correlation coefficients
lie under 0.
Despite this application, the simple correlation coefficient
does not necessarily represent a cause-effect relationship between the traits; i.
ix and iy for selection intensity of trait x and y, rg for genetic correlation coefficient
of trait x and y; Hx and Hy for evolution of heritability of trait x and y.
So path coefficient analysis technique is a statistical approach which is based on multiple regression and is useful for revealing the direct and indirect effects of the variables in a network of factors like agro/morpho/physio/biochemical traits which is able to separate correlation coefficients
into their components of direct and indirect effects (Dewey and Lu, 1959; Wright, 1960).
The correlation coefficients
obtained between (a *) and the other parameters are shown in Table 4.
In that table there are five negative correlation coefficients
and one positive correlation coefficient
, but none of them is statistically significant at a 5% probability level.
are useful tools to determine first if a correlation exists and second to determine whether the correlation is a positive or negative relationship.
TABLE 2: CORRELATION COEFFICIENTS
DETERMINED BETWEEN THE OBSERVED VALUES AND THOSE PREDICTED ACCORDING TO PONT'S INDEX
The main purpose of this paper is to develop fuzzy correlation coefficients
for fuzzy interval data.
The closer the value of the correlation coefficients
to the outer values of the interval <-1; 1> is, the stronger the relationship between the two variables .
For analyzing data, in this research the descriptive statistics (average and standard deviation) and inferential methods like Pearson correlation coefficient
(in order to investigate the relation between attachment styles and intimacy with marital satisfaction) were used.