Using MYSTAT to Analyze Simple Main Effects in Analysis of Variance

1994 ◽  
Vol 79 (1) ◽  
pp. 265-266
Author(s):  
Richard A. Hudiburg
Keyword(s):  
Analysis Of Variance ◽  
Interaction Effect ◽  
Significant Interaction ◽  
Significant Interaction Effect ◽  
Effect Factor ◽  
Research Designs ◽  
Main Effect ◽  
Two Factors ◽  
Main Effects

Research designs with two factors having a significant interaction effect are analyzed for simple main effects using MYSTAT. The coding used performs a series of one-way analyses of variance for each main-effect factor at only one level of the second factor.

Problem-Solving Performances of First-Grade Children

1971 ◽  
Vol 2 (1) ◽  
pp. 50-64 ◽  
Author(s):  
Leslie P. Steffe ◽  
David C. Johnson
Keyword(s):  
Multivariate Analysis ◽  
Problem Solving ◽  
Analysis Of Variance ◽  
Significant Interaction ◽  
Univariate Analysis ◽  
First Grade ◽  
Problem Type ◽  
Problem Types ◽  
Main Effect ◽  
Main Effects

A sample of 111 first-grade children was partitioned into 4 categories, where the categorization was determined by an ability to make quantitative comparisons and IQ. 6 problems of each of 8 problem types were presented to each child in a randomized sequence. Approximately one-half of the children in each category were randomly assigned to 1 of 2 levels of Problem Conditions. A multivariate analysis of variance indicated that IQ was not significant. Problem Conditions was significant (p<.01p<.01). Univariate analysis indicated a significant interaction (p<.05p<.05) due to Quantitative Comparisons and Problem Conditions for 1 problem type; significant main effects (p<.01p<.01) due to Problem Conditions for the remaining 7 problem types; and a significant (p<.05p<.05) main effect due to Quantitative Comparisons for 1 of the remaining 7 problem types.

scholarly journals The Effects of Turmeric Intake Alone or in Combination with Resistance Training on Liver Enzymes in Adult Men

2021 ◽  
Vol 30 (2) ◽  
pp. 183-191
Author(s):  
Seung-Joon Paek ◽  
Sang-Hyun Lee ◽  
Jung Su Park ◽  
Jun-Soo Kim ◽  
Dong-Ho Park
Keyword(s):  
Resistance Training ◽  
Interaction Effect ◽  
Liver Enzymes ◽  
Glutamic Oxaloacetic Transaminase ◽  
Significant Interaction Effect ◽  
Adult Men ◽  
Main Effect ◽  
Before And After ◽  
Glutamyl Transferase ◽  
Main Effects

PURPOSE: This study aimed to investigate the effect of turmeric intake alone or in combination with resistance training on liver enzymes in adult men who regularly consumed alcohol at least twice a week.METHODS: Twelve men (age: 36.0±5.26 years, weight: 99.9±17.9 kg, and height: 184.0±6.5 cm) were randomly assigned to the turmeric intake (2-3 g/day) alone (TI, n=6) group or the TI plus resistance training (60 minutes of RT 3 times a week) (TI+RT, n=6) group for 8 weeks. Blood was collected before and after 8 weeks of treatment. The analyzed variables included glutamic oxaloacetic transaminase (GOT), glutamic pyruvic transaminase (GPT), γ-glutamyl transferase (γ-GTP), and GOT/GPT ratio.RESULTS:There was no significant interaction effect in all variables, but the main effect was found in all variables only in TI+RT group. The Cohen’s d effect size on the main effects of the TI+RT group on GOT (d=0.548), GPT (d=0.835), γ-GTP (d=0.623), and GOT/GPT ratio (d=0.800) ranged from 0.548-0.835, respectively. However, body composition such as percent body fat (%, <i>p</i>>.05) and muscle mass (kg, <i>p</i>>.05) did not show the main effect on time points as well as the interaction effect (<i>p</i>>.05).CONCLUSIONS:Although the 8-week TI treatment did not show any statistically significant change, TI treatment showed a tendency to decrease in GOT, GPT, and γ-GTP, and the GOT/GPT ratio tends to increase. Therefore, there was a synergic effect of the TI plus RT treatment or the sum of the two treatments for 8 weeks.

scholarly journals Effect of cutting shapes and thicknesses on the quality of minimally processed pineapple (Ananas comosus) cv. 'Queen Victoria'

2011 ◽  
Vol 11 (48) ◽  
pp. 5525-5538
Author(s):  
M. S Danyen ◽  
◽  
N Boodia ◽  
A Ruggoo
Keyword(s):  
Interaction Effect ◽  
Significant Interaction ◽  
Ananas Comosus ◽  
Physical Factors ◽  
Minimally Processed ◽  
Significant Interaction Effect ◽  
Queen Victoria ◽  
Main Effect ◽  
Keeping Quality

Cutting shape and size are physical factors that influence the keeping quality of minimally processed fruits and vegetables. Since these factors have not been studied as determinants of the keeping quality of minimally processed pineapples (MPP) cv. ‘Queen Victoria’, this study was conducted. A 2 x 2 factorial treatment structure laid on a randomized block design (RBD) was used. The treatments, which were blocked by days, were combinations of two cutting shapes (slices and chunks) and two thicknesses (5 mm and 10 mm). Pineapples of 25 - 50% ripeness were minimally processed to give rise to the treatments, which were then vacuum-packed at 47.5 kPa in laminated Low Density Polyethylene (LDPE) vacuum bags and stored at 4 ± 10 C for 12 days. Quality changes were evaluated at three-day intervals over a storage period of 12 days. Translucency score was evaluated by comparison method against standard colour charts. Electrical conductivity of leachate (ECL), firmness and pH were measured instrumentally. Ascorbic acid (AA) content was determined by titration with dichlorophenolindophenol (DCPIP) dye. Yeasts and moulds counts (YMC) were also enumerated using the classical standard method. Data were analysed using analysis of variance (ANOVA), and sum of squares due to treatment were split into main effect cutting shape, main effect thickness and interaction effect. All the keeping quality attributes of the MPP were significantly affected by storage time (p<0.001). Cutting shape also significantly affected translucency score (p<0.01), firmness (p<0.01) and YMC (p<0.01). Slices were firmer and had the lowest translucency score and minimized fungal growth as opposed to chunks. No significant interaction effect (p>0.05) was observed between cutting shapes and thicknesses on translucency score, firmness and YMC of the MPP. However, a significant interaction effect was noted between these two variables on ECL (p<0.05) and AA content (p<0.001). A thickness of 10 mm exhibited lower translucency score, higher ECL, reduced firmness and lower AA losses. pH was not significantly affected (p>0.05) by cutting shapes and thicknesses. Ten-mm slices maintained all the above-stated quality parameters, except ECL and pH, when stored at 4 ± 10 C for 12 days.

How to Avoid Stereotypes? Evaluation of a Strategy based on Self-Regulatory Processes

2016 ◽  
Vol 19 ◽  
Author(s):  
María Aranda ◽  
Beatriz Montes-Berges
Keyword(s):  
College Students ◽  
Gender Differences ◽  
Gender Inequality ◽  
Interaction Effect ◽  
Significant Interaction ◽  
Significant Interaction Effect ◽  
Female Candidates ◽  
Regulatory Processes ◽  
Goal Activation ◽  
Main Effects

AbstractBased on research on the motivational processes involved in preventing and controlling stereotypes, we aimed to assess whether temporary activation of egalitarian goals – by means of a task that gives respondents exposure to a text on gender inequality – can prevent stereotyped answers on the task. The task asks participants to place women and men into a hierarchical organizational structure. Two specific objectives were established: first, to control the effect of prejudice and egalitarian commitment on the dependent variable; and second, to study gender differences in task responses. The study included 474 college students, 153 men and 321 women. Their mean age was 20.04 (SD = 4.43). ANCOVA indicated main effects of condition, F(1) = 4.15, p = .042, η2 = .081 (control condition without goal activation vs. experimental condition with goal activation) and sex, F(1) = 40.46, p < .001, η2 = .081, on the dependent variable (female candidates placed in the chart). Specifically, responses from participants in the experimental condition avoided stereotyped answers more than participants in the control condition. Furthermore, women’s performance on the task was more egalitarian than men’s. Finally, there was a significant interaction effect of condition and type of organization, F(2) = 3.97, p = .019, η2 = .017; participants assigning candidates to the feminized organization differed the most across conditions.

EFFECT OF SOWING DATE ON GRAIN YIELD OF CRAB GRASS

2001 ◽  
Vol 49 (3) ◽  
pp. 293-297
Author(s):  
S. O. Bakare ◽  
M. G. M. Kolo ◽  
J. A. Oladiran
Keyword(s):  
Grain Yield ◽  
Interaction Effect ◽  
Significant Interaction ◽  
Sowing Date ◽  
Yield Data ◽  
Significant Interaction Effect ◽  
Sowing Dates

There was a significant interaction effect between the variety and the sowing date for the number of productive tillers, indicating that the response to sowing date varied with the variety. A significant reduction in the number of productive tillers became evident when sowing was delayed till 26 June in the straggling variety as compared to sowing dates in May. Lower numbers of productive tillers were also recorded when the sowing of the erect variety was further delayed till 10 July. The grain yield data showed that it is not advisable to sow the straggling variety later than 12 June, while sowing may continue till about 26 June for the erect variety in the study area.

Nine, Seven, Five, or Three: How Many Figures Do We Need for Assessing Body Image?

2005 ◽  
Vol 100 (2) ◽  
pp. 488-492 ◽  
Author(s):  
Neala Ambrosi-Randić ◽  
Alessandra Pokrajac-Bulian ◽  
Vladimir Takšić
Keyword(s):  
Body Image ◽  
Analysis Of Variance ◽  
Optimal Number ◽  
Female Students ◽  
Validity And Reliability ◽  
Main Effect ◽  
Dependent Variables ◽  
Post Hoc ◽  
Main Effects

320 Croatian female students ( M = 20.4 yr.) were recruited to examine the validity and reliability of figural scales using different numbers of stimuli (3, 5, 7, and 9) and different serial presentation (serial and nonserial order). A two-way analysis of variance (4 numbers × 2 orders of stimuli) was performed on ratings of current self-size and ideal size as dependent variables. Analysis indicated a significant main effect of number of stimuli. This, together with post hoc tests indicated that ratings were significantly different for a scale of three figures from scales of more figures, which in turn did not differ among themselves. Main effects of order of stimuli, as well as the interaction, were not significant. The results support the hypothesis that the optimal number of figures on a scale is seven plus (or minus) two.

Family environment of eating disordered patients with and without self-injurious behaviors

2004 ◽  
Vol 19 (8) ◽  
pp. 494-498 ◽  
Author(s):  
Laurence Claes ◽  
Walter Vandereycken ◽  
Hans Vertommen
Keyword(s):  
Psychiatric Disorders ◽  
Family Environment ◽  
Interaction Effect ◽  
Significant Interaction ◽  
Family Context ◽  
Hair Pulling ◽  
Significant Interaction Effect ◽  
Eating Disordered ◽  
Significant Difference ◽  
The Family

AbstractObjective.– The family environment is known to be an important contributor to the course of psychiatric disorders. In this study, we examined the family context of eating disordered (ED) patients with and without self-injurious behaviors (SIB).Method.– A Dutch adaptation of the Family Environment Scale ‘Sci Eng 57(9-B):1997;5927’ was completed by 131 ED patients of whom 47% showed at least one form of SIB (e.g., cutting, burning, hair pulling, etc.).Results– Results showed a significant difference in family environment between patients with and without SIB. The family environment of self-injuring ED patients was less cohesive, expressive and socially oriented, and more conflictual and disorganized than the family environment of those without SIB. No significant differences in perceived family environment were found with respect to the number or form of SIB and the subtype of ED. Neither did we find a significant interaction effect between ED subtype and presence/absence of SIB.

scholarly journals PERFECCIONISMO INFANTIL: DIFERENCIAS EN FUNCIÓN DEL SEXO Y LA EDAD

2017 ◽  
Vol 3 (1) ◽  
pp. 15 ◽  
Author(s):  
María Vicent ◽  
M. P. Aparicio Flores ◽  
Cándido J. Inglés ◽  
Mª Isabel Gómez-Núñez ◽  
Aitana Fernández-Sogorb ◽  
...  
Keyword(s):  
Age Differences ◽  
Interaction Effect ◽  
Significant Interaction ◽  
Child And Adolescent ◽  
Practical Relevance ◽  
Education Students ◽  
Significant Interaction Effect ◽  
Socially Prescribed Perfectionism ◽  
Educación Primaria ◽  
Sex And Age Differences

Abstract. CHILD PERFECTIONISM: DIFFERENCES ACROSS SEX AND AGE The aim of this study was to analyze the sex and age differences in the levels of child perfectionism, considering the dimensions: Socially Prescribed Perfectionism (SPP), Self-Oriented Perfectionism Criticism (SOP-C) and Self-Oriented Perfectionism Strivings (SOP-S). The sample was composed by 804 Primary Education students from Spain, aged between 8 and 11 years old (Mage = 9.57; SD = 1.12). The Spanish version of the Child and Adolescent Perfectionism Scale was used to assess the perfectionist dimensions. The results of the variance analysis revealed statistically significant differences in favor of males for SOP-C and SOP-S dimensions. However, these differences had no practical relevance because their associated magnitude (d index) were below .20. Similarly, no statistically significant differences were observed across age for perfectionist dimensions. Moreover, a significant interaction effect (sex x age) was not found.Keywords: child perfectionism, sex, age, Child and Adolescent Perfectionism Scale, Primary Education.Resumen.El objetivo de este estudio consistió en analizar las diferencias en función del sexo y la edad en los niveles de perfeccionismo infantil, atendiendo a las dimensiones: Perfeccionismo Socialmente Prescrito (PSP), Perfeccionismo Auto-Orientado Críticas (PAO-C) y Perfeccionismo Auto-Orientado Esfuerzos (PAO-E). La muestra se compuso de 804 alumnos españoles de Educación Primaria con edades comprendidas entre 8 y 11 años (Medad = 9.57; SD = 1.12). Las dimensiones perfeccionistas fueron evaluadas a través de la versión española de la Child and Adolescent Perfectionism Scale. Los resultados del análisis de varianza revelaron diferencias estadísticamente significativas en favor de los varones para las dimensiones PAO-C y PAO-E. Sin embargo, dichas diferencias carecieron de relevancia práctica puesto que la magnitud asociada (índice d) fue inferior a .20. Similarmente, no se observaron diferencias estadísticamente significativas en función de la edad para ninguna de las dimensiones perfeccionistas ni se encontró un efecto de interacción (sexo x edad) significativo.Palabras clave: perfeccionismo infantil, sexo, edad, Child and Adolescent Perfectionism Scale, Educación Primaria

Personality and Students’ Knowledge about Ecosystem Related to Environmental Behavior of Grade XI Senior High School Students at SMA N 112, West Jakarta

2018 ◽  
Vol 3 (1) ◽  
pp. 44-59
Author(s):  
Agus Ramdani
Keyword(s):  
High School ◽  
High School Students ◽  
Interaction Effect ◽  
Significant Interaction ◽  
School Students ◽  
Significant Interaction Effect ◽  
Environmental Behaviour ◽  
Research Results ◽  
Significant Difference ◽  
Senior High School Students

The objective of this research is to find out the effect of Personality (P) and knowledge students about ecosystem (KS) on environmental behaviour (EB). An expost facto method has been used by selecting 8 sample for each cell. Reliability of P was  .964, KS was .937 and EB was .95. Data analyzed by two-way ANOVA. Research results revealed that there was environmental behaviour significant difference between those students who have most extraversion personality compared to introversion personality. Moreover, there was significant interaction effect between personality and knowledge students about ecosystem on environmental behaviour. 

scholarly journals The Effect of Competition on Risk Taking in Contests

Games ◽  
2018 ◽  
Vol 9 (3) ◽  
pp. 72 ◽  
Author(s):  
Lorenzo Spadoni ◽  
Jan Potters
Keyword(s):  
Risk Taking ◽  
Interaction Effect ◽  
Significant Interaction ◽  
Significant Interaction Effect ◽  
All Pay Auction ◽  
Level Of Risk

We investigate, theoretically and experimentally, the effect of competition on risk taking in a contest in which players only decide on the level of risk they wish to take. Taking more risk implies a chance of a higher performance, but also implies a higher chance of failure. We vary the level of competition in two ways: by varying the number of players (2 players versus 8 players), and by varying the sensitivity of the contest to differences in performance (lottery contest versus all-pay auction). Our results show that there is a significant interaction effect between the two treatments, suggesting that players are particularly prone to take more risks if both the number of players and the sensitivity to performance are higher.

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