Total Quality Management

191. What must you include when reporting an ANOVA?

  1. Standard deviations, Degrees of freedom, Means, F statistic, P value
  2. Standard deviations, Means, F statistic, P value
  3. Standard deviations, Degrees of freedom, Means, F statistic
  4. Degrees of freedom, F statistic, P value
Correct answer: (A)
Standard deviations, Degrees of freedom, Means, F statistic, P value

192. As variability due to chance decreases, the value of F will

  1. increase
  2. stay the same
  3. decrease
  4. can't tell from the given information
Correct answer: (A)
increase

193. When conducting an ANOVA, the F-Value calculated from the data will always fall within what'range?

  1. between negative infinity and infinity
  2. between 0 and 1
  3. between 0 and infinity
  4. between 1 and infinity
Correct answer: (C)
between 0 and infinity

194. Two factors are said to be orthogonal when:

  1. they are correlated, that is, they cannot vary independently
  2. there are equal numbers of participants in all groups
  3. they are uncorrelated, that is, they vary independently
  4. there is a single control group, with which all the other groups can be compared
Correct answer: (C)
they are uncorrelated, that is, they vary independently

195. If we add together the sums of squares for the simple main effects of one factor at all the different levels of another factor, we shall obtain:

  1. The interaction sum of squares for the complete experiment
  2. The main effect sum of squares for the second factor, plus the sum of squares for its interaction with the first factor
  3. The main effect sum of squares for the first factor
  4. The main effect sum of squares for the first factor, plus the sum of squares for its interaction with the second factor
Correct answer: (D)
The main effect sum of squares for the first factor, plus the sum of squares for its interaction with the second factor

196. In a factorial design, a main effect is the ______________.

  1. the combined effect of the independent variables on the dependent variable
  2. interaction effect of the independent variables and their effect on the dependent variable
  3. the effect of each independent variable on the dependent variable
  4. interaction of the independent variables
Correct answer: (C)
the effect of each independent variable on the dependent variable

197. You have carried out a Kruskal-Wallis test. There are significant differences between the three groups you are testing. How might you conduct your pairwise comparisons?

  1. Use the Mann Whitney test
  2. Use the Wilcoxon test
  3. Use a t-test
  4. None of the above. Post hoc analyses cannot be carried out with non parametric data
Correct answer: (A)
Use the Mann Whitney test

198. A 2 X 2 factorial

  1. is essentially two designs that have been combined into a single study.
  2. contains four factors.
  3. does not have enough factors to show interactions.
  4. is extremely difficult to interpret if interactions are found.
Correct answer: (A)
is essentially two designs that have been combined into a single study.

199. In factorial designs, the number of times a condition is noted is called:

  1. Randomization
  2. Factorization
  3. Replication
  4. None of These
Correct answer: (C)
Replication

200. A factorial design is one in ______________

  1. Only one independent variable is studied to determine its effect on the dependent variable
  2. Only two independent variables are simultaneously studied to determine their independent and interactive effects on the dependent variables
  3. Two or more independent variables are simultaneously studied to determine their independent and interactive effects on the dependent variable
  4. Two dependent variables are studied to determine their interactive effects
Correct answer: (C)
Two or more independent variables are simultaneously studied to determine their independent and interactive effects on the dependent variable
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