Bayesian Full Rank MANOVA/MANCOVA: An Intermediate Exposition with Interactive Computer Examples

1979 ◽  
Vol 4 (4) ◽  
pp. 357-404 ◽  
Author(s):  
George G. Woodworth
Keyword(s):  
Multivariate Analysis ◽  
Multiple Regression ◽  
Analysis Of Variance ◽  
Univariate Analysis ◽  
Full Rank ◽  
Multivariate Analysis Of Variance

Computation and interpretation of Bayesian full-rank multivariate analysis of variance and covariance is described and illustrated in an exposition intended for readers familiar with univariate analysis of variance and multiple regression.

ENTREPRENEURIAL ORIENTATION AND GROWTH POTENTIAL OF MICROENTERPRISES IN NORTHWEST, NIGERIA

2019 ◽  
Vol 24 (02) ◽  
pp. 1950011
Author(s):  
ABUBAKAR S. GARBA ◽  
IBRAHIM KABIR ◽  
MAHMOUD A. MAHMOUD
Keyword(s):  
Multivariate Analysis ◽  
Multiple Regression ◽  
Analysis Of Variance ◽  
Entrepreneurial Orientation ◽  
Growth Potential ◽  
Multivariate Analysis Of Variance ◽  
Dependent Variables ◽  
The Mean ◽  
Mean Differences

The purpose of this study is to explore the entrepreneurial orientation (EO) and growth potential of microenterprises. To test the research hypotheses, multiple regression and multivariate analysis of variance (MANOVA) were used. Multiple regression was used in explaining how well EO predicts microenterprises growth potential. MANOVA compares the groups and indicates whether the mean differences between the groups on the combination of dependent variables are likely to have occurred by chance. Our study contributes to the literature by exploring the growth potential of the existing microenterprises and explains its relationship to owners’ EO in both urban and rural informal sectors.

Repeated-Measures Designs: Univariate or Multivariate Analysis of Variance?

1997 ◽  
Vol 85 (1) ◽  
pp. 193-194
Author(s):  
Peter Hassmén
Keyword(s):  
Multivariate Analysis ◽  
Analysis Of Variance ◽  
Repeated Measures ◽  
Type I Error ◽  
Univariate Analysis ◽  
Type I ◽  
Multivariate Analysis Of Variance ◽  
Repeated Measures Analysis ◽  
Alpha Level ◽  
Repeated Measures Designs

Violation of the sphericity assumption in repeated-measures analysis of variance can lead to positively biased tests, i.e., the likelihood of a Type I error exceeds the alpha level set by the user. Two widely applicable solutions exist, the use of an epsilon-corrected univariate analysis of variance or the use of a multivariate analysis of variance. It is argued that the latter method offers advantages over the former.

scholarly journals Cognitive flexibility of smokers in the context of social anxiety

2020 ◽  
pp. 93-99
Keyword(s):  
Multivariate Analysis ◽  
Social Anxiety ◽  
Analysis Of Variance ◽  
Cognitive Flexibility ◽  
Univariate Analysis ◽  
Multivariate Analysis Of Variance ◽  
Nicotine Abuse ◽  
Significant Difference ◽  
Wilks Lambda ◽  
Study Population

Background: The cognitiveCognitive dysfunction may be an important factor in smoking and nicotine abuse. However, there are very few studies that have examined the effects of psychiatric conditions on the cognitive flexibility of smokers. Objectives: This research was conducted with the aim of examination theto examine cognitive flexibility (perceive theperceived controllability and cognitive alternatives) ofamong smokers in the context of with social anxiety. MaterialMaterials and methods: The research was a study withpresent causal-comparative design. The populationstudy was allconducted on 60 smoker students ofstudying at Arak University, Arak, Iran, in 2018-2019 years. For selecting the research sample the. The study population was selected using the purposive sampling was usedtechnique. At first, the participants completed the Social Phobia Inventory (SPIN) and Cognitive Flexibility Inventory (CFI).. Then, based on the cutoff point scores of SPIN (19 to above),≤), the participants were divided into two smoker groups (n=30 in each group) were selected: smoker groupsof smokers with and without social anxiety. (n=30 in each group). Finally, these groups were compared in perceive the terms of perceived controllability and cognitive alternatives by Multivariate Analysis of Variance (MANOVA).using the multivariate analysis of variance. Results: The results indicated a significant difference in the linerlinear composition of the dependent variables ofin the two groups (wilks,Wilks’ lambda= 0/.799, F50,2= 6/.726, p= P=0/.004). UnivariateThe results of the univariate analysis of variance indicated that the smoker group with social anxiety had lower perceive theperceived controllability and cognitive alternatives, compared to the smoker group without social anxiety. Conclusion: In generalAs the findings indicated, the level of cognitive flexibility in the smokers with and without social anxiety iswas different. Therefore, it is necessary to consideringconsider the evaluation and treatment of cognitive deficits in smokers based on their level of social anxiety.

NIRSA Members' Perceptions of Organizational Effectiveness

2008 ◽  
Vol 32 (1) ◽  
pp. 16-27 ◽  
Author(s):  
Corinne M. Daprano ◽  
Donna L. Pastore ◽  
Carla A. Costa
Keyword(s):  
Multivariate Analysis ◽  
Multiple Regression ◽  
Organizational Effectiveness ◽  
Analysis Of Variance ◽  
Recreational Sports ◽  
Regression Analyses ◽  
Multivariate Analysis Of Variance ◽  
Significant Relationships ◽  
Systematic Sample

This study assessed National Intramural-Recreational Sports Association (NIRSA) members' perceptions of effectiveness in a sport association. Specifically, this study investigated the extent to which professional members of the NIRSA perceive it to be effective in achieving its stated and operative goals. A stratified systematic sample of professional NIRSA members ( N = 600) was selected to complete the survey. The survey was sent to NIRSA members who had 1 through 4 years of membership, 5 through 9 years of membership, and 10 or more years of membership in the association. Multivariate analysis of variance (MANOVA) was used to compare perceptions of organizational effectiveness among the membership groups. No significant differences were found between the three membership groups and satisfaction. Correlations and multiple regression analyses were conducted to determine the relationships between stated and operative goal effectiveness and satisfaction. Significant relationships were confirmed between satisfaction and several stated and operative goal factors.

scholarly journals Repeated measures in randomized block and split-plot experiments

1993 ◽  
Vol 23 (4) ◽  
pp. 625-639 ◽  
Author(s):  
M.L. Gumpertz ◽  
C. Brownie
Keyword(s):  
Multivariate Analysis ◽  
Analysis Of Variance ◽  
Loblolly Pine ◽  
Repeated Measures ◽  
Univariate Analysis ◽  
Complete Analysis ◽  
Phosphorus Fertilization ◽  
Multivariate Analysis Of Variance ◽  
Repeated Measures Data ◽  
Split Plot

Randomized block and split-plot designs are among the most commonly used experimental designs in forest research. Measurements for plots in a block (or subplots in a whole plot) are correlated with each other, and these correlations must be taken into account when analyzing repeated-measures data from blocked designs. The analysis is similar to repeated-measures analysis for a completely randomized design, but test statistics must allow for random block × time effects, and standard errors for treatment means must also incorporate block to block variation and variation among plots within a block. Two types of statistical analysis are often recommended for repeated-measures data: analysis of contrasts of the repeated factor and multivariate analysis of variance. A complete analysis of repeated measures should usually contain both of these components, just as in univariate analysis of variance it is often necessary to decompose the main effects into single degree of freedom contrasts to answer the research objectives. We demonstrate the multivariate analysis of variance and the analysis of contrasts in detail for two experiments. In addition, estimation of coefficients assuming a polynomial growth curve is discussed in detail for one of these experiments. The first experiment, a randomized complete block design, is a forest nutrition study of the long-term effects of midrotation nitrogen and phosphorus fertilization on loblolly pine (Pinustaeda L.); the second experiment, a split-plot design, is an air-pollution study of the effects of ozone and acid precipitation on loblolly pine growth.

Freudian Symbols on Sexual and Creative Aspects of Stories

1998 ◽  
Vol 82 (3) ◽  
pp. 1059-1072
Author(s):  
Constance J. Larson
Keyword(s):  
College Students ◽  
Multivariate Analysis ◽  
Analysis Of Variance ◽  
Repeated Measures ◽  
Univariate Analysis ◽  
Visual Presentation ◽  
Pairwise Comparisons ◽  
Sexual Content ◽  
Multivariate Analysis Of Variance

Sexual content and creativity of stories and story titles was investigated. 96 college students responded to visual presentation of instances of theoretical Freudian symbols. Analyses subjected responses to a 2 (sex) × 2 (symbol) × 2 (mode) × 6 (subscales) analysis of variance with repeated measures on subscales and to multivariate analysis of variance procedures with four dependent measures. These showed men wrote masculine stories and women wrote feminine stories. Certain subscales were more sensitive to sexual content than others. Pairwise comparisons between the subscales among instances of symbols emerged as significant. In addition, subjects exposed to Male symbols wrote stories containing greater latent sexual content than subjects exposed to Female symbols. Creativity of story tides was evident only on a univariate analysis of variance.

Black Grandparents: Curriculum Development

1996 ◽  
Vol 43 (2) ◽  
pp. 119-134 ◽  
Author(s):  
Robert Strom ◽  
Shirley Strom ◽  
Pat Collinsworth ◽  
Paris Strom ◽  
Dianne Griswold
Keyword(s):  
Multivariate Analysis ◽  
Curriculum Development ◽  
Analysis Of Variance ◽  
Educational Program ◽  
Univariate Analysis ◽  
Multivariate Analysis Of Variance ◽  
Education Programs ◽  
Main Effects ◽  
Effective Analysis

The performance of Black grandparents was examined to determine the most suitable content for an educational program intended to assist them in their role. A sample of 626 non-consanguineous subjects included 204 grandparents, 128 parents, and 294 grandchildren. Each generation group completed a separate version of the Grandparent Strengths and Needs Inventory to identify the favorable qualities of grandparents and aspects of their relationships in which further growth was necessary. A combination of multivariate analysis of variance procedures, univariate analysis of variance tests, and t-tests were used to analyze scores, confirm results, and assist with interpretation of data. All groups described aspects of grandparents success and made known specific realms of learning that grandparents should acquire in order to become more effective. Analysis of the responses revealed significant main effects for generation, gender of grandchild, age of grandchild, and amount of time that grandparent and grandchild spent together. Considerations were identified for improving grandparent influence and guiding the development of grandparent education programs.

Selflessness in Anorexia Nervosa as Reflected in the Rorschach Comprehensive System

2012 ◽  
Vol 33 (1) ◽  
pp. 78-93 ◽  
Author(s):  
Gili Curiel-Levy ◽  
Laura Canetti ◽  
Esti Galili-Weisstub ◽  
Myrna Milun ◽  
Eitan Gur ◽  
...  
Keyword(s):  
Multivariate Analysis ◽  
Anorexia Nervosa ◽  
Analysis Of Variance ◽  
Clinical Observation ◽  
Comparison Group ◽  
Comprehensive System ◽  
Multivariate Analysis Of Variance ◽  
Rorschach Comprehensive System ◽  
Group A

This study examines the expression of selflessness – the tendency to ignore one’s own needs and serve others’ needs – in Rorschach protocols of women suffering from anorexia nervosa. The protocols of 35 women suffering from anorexia nervosa were compared to 30 protocols of a psychiatric comparison group. A multivariate analysis of variance over five variables (AG, PER, PHR, COP, and GHR) was significant: Anorexic patients showed higher characteristics of selflessness compared to the psychiatric comparison group. These findings contribute to the validation of the Rorschach technique and to the clinical observation of selflessness in anorexic patients, and they emphasize specific characteristics in the treatment of anorexia nervosa patients.

A Controlled Study of Sensation Awareness and Verbal Disclosure for Regulation of Arousal and Anxiety

1992 ◽  
Vol 74 (1) ◽  
pp. 307-320 ◽  
Author(s):  
Stephen R. Scholle
Keyword(s):  
Multivariate Analysis ◽  
Analysis Of Variance ◽  
State Anxiety ◽  
Significant Interaction ◽  
Controlled Study ◽  
Multivariate Analysis Of Variance ◽  
Directed Attention ◽  
Self Talk ◽  
Anxiety Levels

Interactions of attention and verbalization were investigated for effects of self-reported arousal and state-anxiety. Levels of verbalization from silence through talking-without-a-listener to disclosure were compared while self-directed attention was manipulated for sensation versus general thoughts and feelings. Following a stimulus, disclosure of sensations was expected to reduce state anxiety and increase energetic arousal significantly more than disclosure of thoughts. Based on a randomly assigned sample of 120 men, a 3 × 2 × 2 multivariate analysis of variance indicated a significant interaction in the predicted directions. A significant interaction was also found for the 3 × 2 interaction for energetic arousal. For state anxiety means were in the predicted direction. Results indicate that verbalization of sensations is more energizing and calming than silence, while for general thought, silence is more energizing and calming than verbalization. The results suggest efficacy in reframing self-talk to quiet awareness and in communicating sensed distinctions as they emerge.

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