On This Page

This set of Psychological Statistics Multiple Choice Questions & Answers (MCQs) focuses on Psychological Statistics Set 3

Q1 | Which of the following is true about skewed distribution?
  • it is symmetrical
  • mean, median and mode coincide
  • similar to normal distribution
  • the more mean moves away from mode, larger skewness
Q2 | Which of the following statements is true about skewed distribution?
  • either positively skewed or negatively skewed.
  • in positively skewed distribution mean is maximum and mode is minimum.
  • in negatively skewed distribution mode is maximum and mean is minimum.
  • all of the above
Q3 | Which of the following statements is false?
  • in a positively skewed distribution there is excess tail on right hand side
  • in a negatively skewed distribution tail more extended in the left hand side.
  • in a skewed distribution median lies between mean and mode.
  • none of these
Q4 | Which of the following statements is true about measures of skewness?
  • no limit for value in karl pearson’s method
  • value ranges from -1 to +1 in bowley’s method
  • value of zero indicates the curve is symmetrical
  • all of the above
Q5 | Which of the following statements is true about platykurtic curve as compared tonormal curve?
  • flatter
  • broader central position
  • lower tails
  • all of the above
Q6 | A distribution is leptokurtic if the calculated value of kurtosis in terms of percentile is -------
  • equal to 0.263
  • less than 0.263
  • greater than 0.263
  • none of these
Q7 | A distribution is platykurtic if the calculated value of kurtosis in terms of percentile is -------
  • equal to zero
  • less than 0.263
  • greater than 0.263
  • equal to 0.156
Q8 | ANOVA test is based on ------
  • variance ratio
  • probability ratio
  • random sample
  • none of these
Q9 | ANOVA is used when -------
  • there are more than two groups
  • there is only two groups to be compared.
  • significant difference between two means is to be found
  • none of these
Q10 | Which of the following test is used in ANOVA
  • t-test
  • z-test
  • f-test
  • none of these
Q11 | In ANOVA, F-value is calculated using which of the following formula?
  • variancebetween groups variancewithin groups
  • variancewithin groups variancebetween groups
  • both (a) and (b)
  • none of these
Q12 | The assumption basic to Analysis of Variance is
  • population distribution of the dependent variable follow normality
  • subgroups under study have same variability
  • groups drawn on certain criteria, randomly selected from the sub population.
  • all of the above
Q13 | Total sum of squares 2) Correction 3) Within sum of squares4) Between sum of squares
  • 1, 2, 3, 4
  • 3, 2, 4, 1
  • 4, 3, 2, 1
  • 2, 1, 4, 3
Q14 | The mean sum of squares (MS) is
  • the sum of squares multiplied by its degrees of freedom
  • the sum of squares divided by its degrees of freedom
  • the sum of squares minus its degrees of freedom
  • the sum of squares plus its degrees of freedom
Q15 | In ANOVA independent variables are called
  • categories
  • levels
  • factors
  • none of these
Q16 | In ANOVA different categories of an independent variable are called.
  • factors
  • levels
  • groups
  • blocks
Q17 | If there are more than one independent variables we use
  • one way anova
  • anova for factorial design
  • both (a) and (b)
  • none of these
Q18 | In one way ANOVA how many F values are calculated
  • 2
  • 3
  • 1
  • 5
Q19 | If there are two independent variables then how many effects are found in ANOVA?
  • 1
  • 2
  • 3
  • 4
Q20 | Which of the following statements are true about Two-way ANOVA with 2 x 3 design.
  • there are two independent variables
  • the first independent variable has two levels
  • the second independent variable has 3 levels
  • all of the above
Q21 | For testing the significance of difference between means, ANOVA analyses ------
  • means
  • standard deviations
  • correlations coefficients
  • variances
Q22 | In one way ANOVA, if the calculated F value is greater than the tabled value of F, then
  • mean difference between all pairs of groups will be significant
  • mean difference is not significant
  • mean difference between more than two groups in the set will be significant
  • mean difference between atleast two groups in the set will be significant
Q23 | Which of the following is true about ANOVA?
  • it is a non parametric test
  • homogeneity of variance is not a basic assumption
  • it is a parametric test
  • assumption of normality is not necessary
Q24 | The calculated value of kurtosis in terms of percentile for a given data is found tobe 0.321, then the distribution is
  • mesokurtic
  • leptokurtic
  • platykurtic
  • none of these
Q25 | The process of grouping the related data in to classes is called
  • Collection
  • Tabulation
  • Grouping
  • Classification