Statistics & Research Methods (CBSENET (UGC) Psychology (PaperII & PaperIII)): Questions 94  99 of 161
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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: 94 (2 of 4 Based on Passage) Show Passage
» Statistics & Research Methods » ANOVA or F Test
Appeared in Year: 2014
Question
What would be the degrees of freedom for error variance?
(June)
Choices
Choice (4)  Response  

a.  90 

b.  89 

c.  84 

d.  83 

Question number: 95 (3 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: 96 (4 of 4 Based on Passage) Show Passage
» Statistics & Research Methods » ANOVA or F Test
Question
Since the F ratio, defined as ‘MSA B/MSE’, is significant, it would be desirable to carry out
Choices
Choice (4)  Response  

a.  posthoc comparisons for the three levels of A 

b.  compute 3 2 multivariate ANOVA 

c.  posthoc comparison for the two levels of B. 

d.  simple effects analysis 

Question number: 97
» Statistics & Research Methods » Common Statistical Tests in Psychology
Question
Test of ________ provide an estimate of how often experimental effects could have occurred by chance alone.
Choices
Choice (4)  Response  

a.  Probability 

b.  Significant difference 

c.  Statistical significance 

d.  All of the above 

Question number: 98
» Statistics & Research Methods » Measures of Variation
Question
In measures of variability, when the scores are widely spread, this number, gets ________. When the scores are close together, it gets ________.
Choices
Choice (4)  Response  

a.  Smaller, smaller 

b.  Smaller, larger 

c.  Larger, smaller 

d.  Larger, larger 

Question number: 99
» Statistics & Research Methods » Inferential Statistics
Question
When a correlation exists, we can say that ________.
Choices
Choice (4)  Response  

a.  Two variables are not related 

b.  Two variables have cause and effect relationship 

c.  Two variables are related 

d.  All of the above 
