Statistics & Research MethodsANOVA or F Test (CBSENET (Based on NTAUGC) Psychology (PaperII & PaperIII)): Questions 6  10 of 12
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Passage
A researcher wanted to study the effect of a specific drug on the activity of rats. He suspected if the effect of the drug is moderated by temperature. He varied drug dosage (A) at three levelsno drug (placebo), low drug dosage (5 mg/kg bodyweight) and high drug dosage (10 mg/kg bodyweight). He varied temperature (B) at two levels – 25 degree Celsius and 39 degree Celsius. Fifteen rats were randomly assigned to each of the six groups. The activity scores for each rate were obtained through activity wheel. The cell means and standard deviations for activity scores were obtained for the six cells. All the cells had comparable standard deviations. A suitable analysis of variance was carried out using the activity scores as the dependent variable. One of the interesting finding in this research was that the F ratio defined as ‘MSA B/MSE’ was statistically significant at. 01 level.
(June 2014)
Question number: 6 (4 of 4 Based on Passage) Show Passage
» Statistics & Research Methods » ANOVA or F Test
Question
What would be the degrees of freedom for the interaction term?
Choices
Choice (4)  Response  

a.  2 

b.  3 

c.  5 

d.  6 

Question number: 7
» Statistics & Research Methods » ANOVA or F Test
Appeared in Year: 2015
Question
In a study, twenty – five subjects performed the same task under three conditions – relaxed, moderately stressed, and highly stressed. The suitable analysis of variance was carried out. The degree of freedom for the conditions X subjects interaction (used as an estimate of error variance) would be: (June)
Choices
Choice (4)  Response  

a.  48 

b.  24 

c.  72 

d.  74 

Question number: 8
» Statistics & Research Methods » ANOVA or F Test
Appeared in Year: 2015
Question
Which one of the following is considered as a nonparametric alternative to oneway ANOVA for independent samples? (December)
Choices
Choice (4)  Response  

a.  Kruskal  Wallis H test 

b.  Mann Whitney U test 

c.  Kolmogorov  Smirnov test 

d.  Friedman’s ANOVA 

Passage
Experimental personality research was extremely popular after 1950 for about three to four decades. In experimental personality research, one of the major focuses is to study how the effect of experimentally manipulated independent variable is moderated by personality variable/s. In one of such study, the researcher wanted to study whether the effect of interpolated learning (A) is moderated by Anxiety (B). The researcher hypothesized that the interpolated learning would adversely affect the recall of original learning, more in high anxious subjects than low anxious subjects. Using a standardized Anxiety scale, from an initial pool of two hundred subjects, fifty high and fifty low anxious subjects were obtained.
Both, high as well as low anxious groups were further divided into two groupsExperimental group and Control group. The experimental groups first learned List A of CVC trigrams then learned another List B of CVC trigrams with similar association values, and then tested for Recall (A). The subjects in control groups learned List A. then they received the cancellation task for the specific period (equal to the average time, taken by the corresponding experimental group to learn List B). The subjects were then tested for the Recall of (A). GroupWise means and standard deviations for recall scores were obtained.
The standard deviations were found comparable across the groups. Treating recall
Scores as the dependent variable, the appropriate ANOVA was carried out. The main effect of A was found significant at 0.05 levels. Similarly, the Fratio, defined as was found statistically significant at 0.01 level.
Question number: 9 (1 of 1 Based on Passage) Show Passage
» Statistics & Research Methods » ANOVA or F Test
Appeared in Year: 2015
Question
What would be the degrees of freedom for the numerator and denominator of the Fratio defined as ? (December)
Choices
Choice (4)  Response  

a.  1 and 98 respectively 

b.  2 and 97 respectively 

c.  3 and 96 respectively 

d.  1 and 96 respectively 

Question number: 10
» Statistics & Research Methods » ANOVA or F Test
Appeared in Year: 2017
Question
A group of 25 subjects were tested on reaction time under three conditionslow stressful, moderately stressful, and highly stressful. The data were analyzed by suitable ANOVA. What would be the degrees of freedom for ‘stressfulness X subjects’ interaction? (January)
Choices
Choice (4)  Response  

a.  48 

b.  3 

c.  2 

d.  24 
