Which of the following statements about the assumption of sphericity is NOT true?It is automatically met when an independent variable has only two levelsIt is the repeated measures equivalent of homogeneity of variancesIt is tested using Mauchley's test in SPSSIt is tested using Levene's test in SPSSQuestion 9

Which of these is not an assumption of the two-sample t-test?Question 3Answera.Independenceb.Homogeneity of variancec.Normalityd.Sphericity

In a mixed factorial ANOVA, with respect to assumptions, are we concerned with Homogeneity of variance or Sphericity?Both, but assumption of sphericity only applies when the within subjects IV has 3+ levels as with repeated measures designs that are not mixed.Assumption of sphericity only, which applies when the within subjects IV has 2+ levels as with repeated measures designs that are not mixed.Assumption of sphericity only, which applies when the within subjects IV has 3+ levels as with repeated measures designs that are not mixedHomogeneity of variance only

Question 1You can examine Levene's test for homogeneity to more formally test which of the following assumptions?1 pointthe assumption of errors being normally distributedthe assumption of equal variancesthe assumption of independent observationsthe assumption of treatments being randomly assigned

the linearity assumptionthe independence assumptionboth the linearity and the independence assumptionsthe equal variance assumptionboth the linearity and the equal variance assumptions

Only one of these statements is wrong. Which is it?Question 14Answera.A one-sample t-test assumes homogeneity of varianceb. A two-sample t-test assumes homogeneity of variancec.A one-sample t-test assumes normalityd.A paired t-test assumes normality