QUESTION 1 According to the text, a two-tailed test should be useda.unl

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QUESTION 1
According to the text, a two-tailed test should be useda.unl

QUESTION 1
According to the text, a two-tailed test should be useda.unless there is a compelling a priori reason not to.b.if you are sure that the difference between your means is sufficiently large to ensure statistical significance.c.when you are interested in controlling Type II errors but less interested in controlling Type I errors.d.none of these
8.33 points
QUESTION 2
You have just completed an experiment in which different subjects were randomly assigned to an experimental and a control group. Your dependent variable was the number of errors made on a memory test. The most appropriate parametric statistic for your data is thea.t test for independent samples.b.t test for correlated samples.c.z test for proportions.d.any of these
8.33 points
QUESTION 3
Which of the following is a Type I statistical error?a.saying that an independent variable had an effect when in fact it did notb.identifying one independent variable as affecting the dependent variable when in fact another one had the effectc.saying that an independent variable had no effect when in fact it didd.saying that an independent variable had a weak effect when in fact it had a strong effect
8.33 points
QUESTION 4
A statistically significant difference between sample means leads us toa.accept that the observed differences between sample means were not due to chance.b.accept that the observed differences were due mainly to chance fluctuations in the data.c.not know if the variables have differences.d.conclude that the means represent a single underlying population.
8.33 points
QUESTION 5
The ________ is the probability that a difference between means at least as large as the one actually obtained could have occurred purely through sampling error. It is the criterion you use to reject the null hypothesis.a.Type II levelb.beta levelc.Type I leveld.alpha level
8.33 points
QUESTION 6
The literature review found in the introduction to an APA-style manuscript for an experiment would
a.be limited to a discussion of one or two central articles pertaining to the paper.b.focus on those issues that are most important for establishing the rationale of the study.c.provide an in-depth review of even the most basic concepts that apply to the paper.d.thoroughly review all research in the area pertaining to the paper.
8.33 points
QUESTION 7
In the results section of an APA-style manuscript, youa.present all the raw data on which your results are based.b.report your findings, including the results of any statistical tests.c.report and interpret your findings.d.report your findings but do not report the results of any statistical tests.
8.33 points
QUESTION 8
Which of the following formats correctly shows how to report the results of a statistical test in an APA-style manuscript?a.(F(df = 3,56)) = 4.56, p < .05, η2 = .06b.F = 4.56, p < .05, η2 = .06c.F(df = 3, df=56) = 4.56, p < .05, η2 = .06d.F(3,56) = 4.56, p < .05, η2 = .06 8.33 points    QUESTION 9 The method section of an APA-style manuscript should be detailed enough so that a.your reader can get a general idea about what you did.  b.you bore your reader to tears.c.your reader knows exactly what was done throughout your experiment to the minutest detail.d.your reader could replicate your experiment. 8.33 points    QUESTION 10 By convention, which of the following alpha levels is not considered meeting the minimum criterion for statistical significance?.10.01.04.039 8.37 points    QUESTION 11 You conduct a single-factor, matched-pairs experiment, but your data require a nonparametric statistical analysis. A good choice of analysis here is theMann-Whitney U test.Wilcoxon signed ranks test.t-test for correlated samples.ANOVA 8.33 points    QUESTION 12 In a study of reaction time, Dr. Mills experimentally manipulates two independent variables and also obtains a continuous correlational measure. The most appropriate analysis for her data would be a(n)split-plot analysis of variance.analysis of covariance.Latin square analysis of variance.five-factor between-subjects analysis of variance. 8.33 points

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