Effect of Rancher’s Management Philosophy, Grazing Practices, and Personal Characteristics on Sustainability Indices for North Central Texas Rangeland Page: 67
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Transformation of the problem variables to a single categorical variable was
accomplished by simply adding the number of selections with a "yes" per question, per
respondent. The questions were, 2.1:"I measure economic success on the ranch by: (Check all
that apply)" and 2.2: "My ranch uses diversification of enterprises to reduce risk or increase
income. If yes, I diversify by: (Check all that apply)".
Question 2.1 became the number of economic measures used to detect economic success
and 2.2 became the number of diversified enterprises used on the respondent's ranch. It was
theorized that the greater the number of measures for economic success, or the greater the
diversification, the more sustainable the operation may be. The end result was a reduction of 30
original variables to 14, one per question. These were evaluated for internal consistency.
SPSS version 18.0 was used to evaluate the Cronbach's alpha coefficient. The analysis
was computed consecutively with reduction of variables as suggested by the item to correlation
score, until Cronbach's Alpha Coefficient was maximized. Desired outcome to variables as
unidimensional for confirmatory purposes was set at a critical value of alpha as 0.7(a = .7)
(Nunnaly & Bernstein, 1994; Starkweather, 2011b; Garson, 2011c).
Section 4, "Land Health", was comprised of 25 ordered questions which resulted in an
equal number of 25 ordered variables. All variables were evaluated for internal consistency
using SPSS version 18.0 and evaluating for the Cronbach's alpha coefficient greater than 0.7.
SPSS version 18.0 was used to evaluate the Cronbach's alpha coefficient. The analysis was
computed consecutively with reduction of variables as suggested by the item to correlation score.
Quality of Life
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Becker, Wayne. Effect of Rancher’s Management Philosophy, Grazing Practices, and Personal Characteristics on Sustainability Indices for North Central Texas Rangeland, dissertation, December 2011; Denton, Texas. (digital.library.unt.edu/ark:/67531/metadc103289/m1/78/: accessed September 20, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; .