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Applied Statistics II Multivariable And Multivaria
Applied Statistics II Multivariable and Multivaria
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Test Bank for Applied Statistics II Multivariable and Multivariate Techniques 3rd Edition by Rebecca M. Warner |All Chapters, Complete Q & A, Latest A+
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Applied Statistics II Multivariable and Multivaria
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Applied Statistics II
Test Bank for Applied Statistics II Multivariable and Multivariate
Techniques 3rd Edition by Rebecca M. Warner |All Chapters,
Complete Q & A, Latest A+..
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Test Bank for Applied Statistics II Multivariable and Multivariate
Techniques 3rd Edition by Rebecca M. Warner |All Chapters,
Complete Q & A, Latest A+
Chapter 1: The New Statistics
Multiple Choice
1. A variable that is statistically controlled in an analysis is a(n) .
a. an independent variable
b. a dependent variable
c. a covariate
d. a manipulated variable Ans: C
Cognitive Domain: Knowledge
Answer Location: 1.1: Required Background Difficulty Level: Easy
2. In past years, many investigators have failed to report .
a. the effect size
b. the sample sizes
c. descriptive statistics
d. obtained p values Ans: A
Cognitive Domain: Knowledge
Answer Location: 1.2: What is the “New Statistics”? Difficulty Level: Easy
3. A primary concern of investigators has been, and often still is, obtaining a p value of
.
a. .10
b. .05
c. .01
d. .000
Ans: B
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Cognitive Domain: Knowledge
Answer Location: 1.2: What Is the “New Statistics”? Difficulty Level: Easy
4. A major change advocated by New Statistics is .
a. reduced emphasis on effect size
b. focus on the results of single studies
c. not reporting confidence intervals
d. understanding the limitations of significance tests Ans: D
Cognitive Domain: Knowledge
Answer Location: 1.2: What is the “New Statistics”? Difficulty Level: Easy
5. A primary change proposed by advocates of New Statistics involves summarizing effect
sizes from a number of studies using .
a. Bayesian statistics
b. meta-analysis
c. multivariate analysis
d. descriptive statistics Ans: B
Cognitive Domain: Knowledge
Answer Location: 1.2: What Is the “New Statistics”? Difficulty Level: Easy
6. An emphasis of New Statistics is .
a. using increasingly precise p values
b. developing new methods of statistical analysis
c. reducing emphasis on confidence interval interpretation
d. adopting a more critical perspective when considering significance Ans: D
Cognitive Domain: Knowledge
Answer Location: 1.2: What Is the “New Statistics”? Difficulty Level: Easy
7. Which of the following types of information is provided to investigators by NHST?
a. whether the hypothesis of the study has been proven
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b. the probability that the research hypothesis is true
c. the probability of obtaining results about the H0 based on one sample
d. the exact probability of obtaining the same results on replication Ans: C
Cognitive Domain: Analysis
Answer Location: 1.3: Common Misinterpretations of p Values Difficulty Level: Hard
8. When reading an article that reports the results of multiple statistical tests, readers should
remember that multiple tests .
a. provide inaccurate information about the risks of Type I errors
b. provide inaccurate information about the risks of Type II errors
c. enhance understanding of cause and effect relationships
d. provide reliable information about the size and importance of effects Ans: A
Cognitive Domain: Application
Answer Location: 1.3: Common Misinterpretations of p Values Difficulty Level: Medium
9. An advocate of New Statistics would object to a research report that included a statement
like the .
a. results of our study are consistent with a recent meta-analysis
b. significant results should be interpreted cautiously due to the large sample size
c. results of our study approached statistical significance
d. results of our study provide support for our initial hypothesis Ans: C
Cognitive Domain: Application
Answer Location: 1.3: Common Misinterpretations of p Values Difficulty Level: Medium
10. If a statistical analysis yields p = .03, a research report can include a statement like
.
a. the results of our study are likely to be replicated
b. the evidence is consistent with the hypothesis of our study
c. there is a 97% chance that the null hypothesis of our study is false
d. the results of our study cannot be explained by chance Ans: B
Cognitive Domain: Application
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Answer Location: 1.3: Common Misinterpretations of p Values Difficulty Level: Medium
11. An advocate of New Statistics would support a p value reported as .
a. p = .0000
b. p < .01
c. p < .05
d. p = .025
Ans: D
Cognitive Domain: Knowledge
Answer Location: 1.4: Problems with NHST Logic Difficulty Level: Easy
12. A problem with NHST logic is that it .
a. eliminates the need to think in terms of double negatives
b. encourages investigators to describe study results in terms of uncertainty
c. cannot tell investigators what they want to know
d. is used consistently and correctly in the majority of studies Ans: C
Cognitive Domain: Comprehension
Answer Location: 1.4: Problems with NHST Logic Difficulty Level: Medium
13. An important assumption underlying the use of an independent samples t test or one-way
ANOVA is that .
a. the grouping variables are normally distributed in the population
b. the variances of the groups on the dependent variable are equal
c. all participants respondents responded to both the pretest and the posttest
d. all scores in each group lie within one standard deviation of the mean Ans: B
Cognitive Domain: Comprehension
Answer Location: 1.5.1: Violations of Assumptions Difficulty Level: Medium
14. An important assumption underlying the use of Pearson r is that .
a. the relationship between the two variables is linear
b. the variances of the X and Y scores are equal
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