Statistics & Research Methods (CBSENET (UGC) Psychology (PaperII & PaperIII)): Questions 84  88 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: 84 (1 of 1 Based on Passage) Show Passage
» Statistics & Research Methods » ANOVA or F Test
Appeared in Year: 2014
Question
From the above paragraph, it can be inferred that the assumption of homogeneity of variance
Choices
Choice (4)  Response  

a.  suggests square root transformation of data in this case. 

b.  cannot be evaluated in the absence of relevant data 

c.  has been violated 

d.  has been satisfied 

Question number: 85
» Statistics & Research Methods » Inferential Statistics
Question
Correlation can be expressed as a coefficient of correlation. This is simply a number falling somewhere between ________ and ________.
Choices
Choice (4)  Response  

a.  +1.00, 1.00 

b.  +100, 100 

c.  +. 99, . 99 

d.  +11.00, 11.00 

Question number: 86
» Statistics & Research Methods » Measures of Variation
Question
To obtain the ________, we find the deviation of each score from the mean and then square it. These squared deviations are then added and averaged.
Choices
Choice (4)  Response  

a.  Standard score 

b.  Standard variance 

c.  Deviation 

d.  All of the above 

Question number: 87
» Statistics & Research Methods » Inferential Statistics
Question
Perfect correlation is 1.00 and a correlation of ________ occurs when scores are unrelated.
Choices
Choice (4)  Response  

a.  0.00 

b.  0.11 

c.  0.10 

d.  0.01 

Question number: 88
» Statistics & Research Methods » Measures of Central Tendency
Question
A bellshaped curve having known mathematical properties and characterized by a large number of scores in the middle, tapering towards very few extremely high and low scores at either end, is called ________.
Choices
Choice (4)  Response  

a.  Normal curve 

b.  Curve 

c.  Abnormal curve 

d.  Question does not provide sufficient data or is vague 
