Interpretation of canonical analysis: Rotated vs. unrotated solutions

Cliff, Norman; Krus, David J.

doi:10.1007/bf02291696

Cited by 103 publications

(35 citation statements)

References 6 publications

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“…In this type of solution, rotation preserves many optimization properties provided it takes place in certain ways and in a subspace of the corresponding hyperspace. Rotation from the maximum intervariate correlation structure into a different, simpler, and more meaningful structure increases the interpretability of the canonical weights [12]. This procedure was adopted in order to define the operational conditions within the optimization region providing the best TPH removal results.…”

Section: Regression Analysismentioning

confidence: 99%

Biodegradation of diesel oil and gasoline contaminated effluent employing intermittent aeration

Vieira

Faria

et al. 2009

Journal of Hazardous Materials

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Section: Regression Analysismentioning

confidence: 99%

Biodegradation of diesel oil and gasoline contaminated effluent employing intermittent aeration

Vieira

Faria

et al. 2009

Journal of Hazardous Materials

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“…In this type of solution, rotation leaves many optimizing properties preserved, provided it takes place in certain ways and in a subspace of its corresponding hyperspace. This rotation from the maximum intervariate correlation structure into a different, simpler, and more meaningful structure increases the interpretability of the canonical weights (Cliff and Krus 1976). This procedure was adopted in order to define the operational condition within the optimization region, so that the best TPH removal results could be obtained.…”

Section: Resultsmentioning

confidence: 99%

“…Canonical analysis was used in this study (Cliff and Krus 1976) Analyses of TPH The TPH dosage was performed according to the methodology described by Vieira et al (2007). To measure the amount of TPH, hydrochloric acid was added to 10 ml of effluent to achieve a pH of 2 or less.…”

Section: Determination Of the Stationary Point For Tph Removal (Maximmentioning

confidence: 99%

Statistical analysis and optimization of nitrogen, phosphorus, and inoculum concentrations for the biodegradation of petroleum hydrocarbons by response surface methodology

Vieira

Faria

Vieira

et al. 2008

World J Microbiol Biotechnol

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In order to optimize and evaluate the influence of nitrogen, phosphorus, and inoculum concentrations on the biodegradation of hydrocarbon contaminated effluents, experiments based on central composite design (CCD) method were carried out for 3 days, employing C1 mixed culture and intermittent aeration. The independent variables were nitrogen concentration (X 1 ), phosphorus concentration (X 2 ), and inoculum concentration (X 3 ) and the removal of total petroleum hydrocarbons (TPH) was the dependent variable. The optimized nutrients ratio (C:N:P = 100:20:2.7) and inoculum concentration (1.32 g/ l) provided TPH removal of 71.8% after processing for three days. Analysis using gas chromatography identified five hydrocarbons classes: paraffins, isoparaffins, olefins, naphthenics, and aromatics. The naphthenic compounds did not degrade as readily as the other hydrocarbons that were identified. The following degradation percentages were obtained: 87.1% for the paraffins, 77.7% for the isoparaffins, 78.6% for the olefins, 38.4% for the naphthenics, and 71.7% for the aromatics.

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“…]) and the themes that were extracted in Stage 1 and quantitized in Stage 2 via the inter-respondent matrix. Specifically, a canonical correlation analysis (Cliff & Krus, 1976;Darlington, Weinberg, & Walberg, 1973;Thompson, 1980Thompson, , 1984 was used to examine the multivariate relationship between the selected demographic variables and the themes. For each statistically significant canonical coefficient, standardized coefficients and structure coefficients were computed, which served as inferential-based effect sizes (Onwuegbuzie, 2003a).…”

Section: Stage 4: Confirmatory Stagementioning

confidence: 99%

Doctoral Students’ Perceptions of Characteristics of Effective College Teachers: A Mixed Analysis

Anderson

Ingram

Buford

et al. 2012

IJDS

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The purpose of this study was to determine doctoral students' perceptions of characteristics of effective teachers and to identify antecedent correlates of these perceptions (i.e., gender, race, type of degree sought, and employment status). Participants were 205 doctoral students who were enrolled at a research university in the United States. Using a sequential mixed analysis, a priori themes identified by Onwuegbuzie, Witcher Collins, Filer, Wiedmaier, and Moore (2007) were applied to doctoral students' open-ended responses, comprising responsive, enthusiast, studentcentered, professional, expert, connector, transmitter, ethical, and director. The perceptions of doctoral students were found to be multidimensional, suggesting that a blend of attributes is required of the college teaching profession. Findings from this study have important pedagogical implications for administrators, developers of teacher evaluation forms, and instructors of doctoral students.

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Interpretation of canonical analysis: Rotated vs. unrotated solutions

Cited by 103 publications

References 6 publications

Biodegradation of diesel oil and gasoline contaminated effluent employing intermittent aeration

Biodegradation of diesel oil and gasoline contaminated effluent employing intermittent aeration

Statistical analysis and optimization of nitrogen, phosphorus, and inoculum concentrations for the biodegradation of petroleum hydrocarbons by response surface methodology

Doctoral Students’ Perceptions of Characteristics of Effective College Teachers: A Mixed Analysis

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