CBSE-NET (UGC) Psychology (Paper-II & Paper-III): Questions 2872 - 2877 of 4421
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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 levels-no drug (placebo), low drug dosage (5 mg/kg body-weight) 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.
Question number: 2872 (1 of 4 Based on Passage) Show Passage
Since the F ratio, defined as ‘MSA B/MSE’, is significant, it would be desirable to carry out
post-hoc comparisons for the three levels of A
compute 3 2 multivariate ANOVA
post-hoc comparison for the two levels of B.
simple effects analysis
Question number: 2873 (2 of 4 Based on Passage) Show Passage
Question number: 2874 (3 of 4 Based on Passage) Show Passage
From the significant F ratio, ‘MSA B/MSE’, it can be inferred that
the main effect of drug dosage is significant
the main effect of temperature is significant
the effect of drug dosage is moderated by temperature
the main effect of drug dosage, the main effect of temperature, and the interaction effect of the two, all are significant.
Question number: 2875 (4 of 4 Based on Passage) Show Passage
Question number: 2876
“Format of a test” is a term that refers to
all of the above.
the arrangement or layout of test items.
the form a test is in.
whether a computerized test is IBM or Apple-compatible.