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study help
mathematics
using interpreting statistics
Questions and Answers of
Using Interpreting Statistics
If FColumns = 2.45, dfColumns = 3, and dfWithin = 168, write the results in APA format. Use α = .05.
If FColumns = 4.00, dfColumns = 1, and dfWithin = 36, write the results in APA format. Use α = .05.
Given the ANOVA summary table below, write the results in APA format for(a) The rows effect,(b) The columns effect, and(c) The interaction effect. Use α = .05. Degrees Source of Sum of
Given the ANOVA summary table below, write the results in APA format for(a) The rows effect,(b) The columns effect, and(c) The interaction effect. Use α = .05. Degrees Source of
If the null hypothesis is rejected for all three effects (rows, columns, and interaction), which effects should be interpreted?
If the null hypothesis is rejected for the rows effect and the columns effect, but not for the interaction effect, which effects should be interpreted?
If the null hypothesis is rejected for the interaction effect but not for the rows effect or the columns effect, which effects should be interpreted?
If the null hypothesis is rejected for the rows effect and for the interaction effect, but not for the columns effect, which effects should be interpreted?
If SSRows = 3.78 and SSTotal = 47.83,(a) Calculate η2Rows and(b) Classify the effect as small, medium, or large.
If SSColumns = 17.91 and SSTotal = 783.54,(a) Calculate η2Columns and(b) Classify the effect as small, medium, or large.
Given the ANOVA summary table below, calculate η2for(a) The rows effect,(b) The columns effect, and(c) The interaction effect. Degrees Source of Sum of of Mean Variability Squares
Given the ANOVA summary table below, calculate η2for(a) The rows effect,(b) The columns effect, and(c) The interaction effect. Degrees Source of Sum of of Mean Variability Squares
Given R = 3, C = 2, and n = 8, find(a) qRows(b) qColumns, and(c) qCells.
Given R = 3, C = 3, and n = 11, find(a) qRows,(b) qColumns, and(c) qCells.
If qRows = 3.49, MSWithin = 4.56, and nRows = 12, what is HSDRows?
If qCells = 2.96, MSWithin = 12.75, and nCells = 4, what is HSDCells?
If α = .05, for which effects should an HSD value be calculated? Degrees Source of Sum of of Mean Variability Squares Freedom Square ratio Between groups 324.00 Rows 70.00 35.00 28.46
If α = .05, for which effects should an HSD value be calculated? Degrees Source of Sum of of Mean Variability Squares Freedom Square ratio Between groups 118.00 Rows 88.00 2 44.00 9.91
If MRow 1 = 117.66, MRow 2 = 113.63, MRow 3 = 128.91, and HSDRows = 5.89, determine(a) Which rows have a statistically significant difference and(b) The direction of the differences.
If MCell 1 = 55.54, MCell 2 = 48.34, MCell 3 = 36.44, MCell 4 = 59.40, and HSDCells = 7.83, determine(a) Which cells have a statistically significant difference and(b) The direction of the
A consumer psychologist classified shoppers at a grocery store as (a) Being males or females, and (b) Shopping with or without children. These two variables were crossed and he took a random sample
A cognitive psychologist decided to investigate whether two beliefs about healthy living had any real impact on performance in college. She took 40, first-semester college student volunteers
A developmental psychologist investigated the influence of two crossed variables—exposure to televised violence and type of parental discipline—on teens’ acceptance of violence. He obtained a
An industrial organizational psychologist investigated the crossed effects of two variables being a member of a team sport in high school and extroversion levelon how well
Each cell in the table contains 7 cases.(a) Given the cell, row, and column means below, calculate the missing cell means. If it cant be done, say so.(b) Calculate the mean for all 28
Each cell in this table has the same number of cases, but that number is unknown.(a) Given the cell, row, and column means below, calculate the missing cell means. If it cant be done, say
Each cell in the table has 5 cases.(a) Given the cell, row, and column means below, calculate the missing cell means. If it cant be done, say so.(b) Calculate the mean for all 30 cases.
The means of five independent samples are being compared. Which ANOVA is being used?a. Between-subjects, one-way ANOVAb. One-way, repeated-measures ANOVAc. Between-subjects, two-way ANOVAd. (a) or
The means of six independent samples are being compared. Which ANOVA is being used?a. Between-subjects, one-way ANOVAb. One-way, repeated-measures ANOVAc. Between-subjects, two-way ANOVAd. (a) or
Given R = 3, C = 3, n = 12, and the ANOVA summary table below, calculate HSD values for the effects as necessary and appropriate. Degrees Source of Sum of of Mean Variability Squares Freedom Square
Within-subjects, one-way ANOVA is an extension of the paired-samples t test to situationsin which there are more than ____ dependent samples.
A psychologist studying addictions investigated the effectiveness of three different treatments for alcoholism on the number of strong urges to drink alcohol that were experienced at the end of
A psychologist teaching introductory psychology wanted to demonstrate the effects of mere exposure on liking. On the first day of class, she used individual monitors to show each of her 20 students a
If the results of a one-way, repeated-measures ANOVA are F(3, 45) = 12.56, P < .05, what is N?
Is it possible, in a one-way, repeated-measures ANOVA, for dfTreatment to be 2 and dfResidual to be 75?
If the results of a one-way, repeated-measures ANOVA are F(3, 45) = 12.50, p < .05, and η2 = 28.30, how concerned should one be about Type II error?
A group of students had their IQs measured at the start, middle, and end of a school year. The three means, respectively, were 125.5, 127.5, and 130.5. A one-way, repeated measures ANOVA was used to
Which HSD value will be larger: one for α = .01 or one for .05? Why?
Eta squared, like ____, ranges from 0% to100%.
The closer eta squared is to ____%, the bigger the effect.
If the treatment effect explained 10% of the variability in a set of scores, Cohen would consider this a ____ effect.
The ____ is a post-hoc test for use with oneway, repeated-measures ANOVA.
Post-hoc tests for ANOVA should only be calculated when the null hypothesis is ____.
To calculate an HSD value, one needs to find a ____ value in Appendix Table 5.
If a pair of sample means differ by less than the HSD value, the difference is considered ____ significant.
If a difference in a post-hoc test is statistically significant, the two sample means can be used to determine the ____ of the difference for the two population means.
People who traveled between Philadelphia and New York City by different vehicles (train, car, bus, or plane) were surveyed to see how pleasant the experience had been. Pleasantness was measured on an
First-year college students were surveyed about how much they liked their roommates(a) Within five minutes of meeting them,(b) After the first week of classes, and(c) At the end of the semester. An
When making purchases with cash, some people drop their pennies in the “penny cup” next to the cash register and some don’t. A social psychologist wondered if those who did were more
A recreational therapist knows the U.S. population mean and standard deviation for scores on an interval-level risk-taking scale. She obtains a random sample of people who enjoy riding roller
The dean of retention at a college wanted to find out if academic problems or social problems caused students to drop out at her college. She took a random sample of first year students at her
A clinical psychologist wanted to compare three treatments for generalized anxiety disorder (GAD). She put an ad in the local paper to find people with GAD. She matched them into groups of three,
a. What is the null hypothesis for a one-way, repeated-measures ANOVA?b. What is the alternative hypothesis for a one-way, repeated-measures ANOVA?
a. What is the null hypothesis for Exercise 11.64?b. What is the alternative hypothesis for Exercise 11.64?Data from exercise 11.64A clinical psychologist wanted to compare three treatments for
If k = 3, n = 8, and N = 24, what are dfSubjects, dfTreatment, dfResidual, and dfTotal?
If k = 5, n = 20, and N = 100, what are dfSubjects, dfTreatment, dfResidual, and dfTotal?
If k = 4 and n = 15, what are dfSubjects, dfTreatment, dfResidual, and dfTotal?
If k = 3 and n = 30, what are dfSubjects, dfTreatment, dfResidual, and dfTotal?
Setting the decision rule for one-way, repeated-measures ANOVA. (Assume α = .05.)Given dfTreatment = 2 and dfResidual = 10,(a) what is Fcv?](b) Draw the sampling distribution of F, being sure to
Setting the decision rule for one-way, repeated-measures ANOVA. (Assume α = .05.)Given dfTreatment = 3 and dfResidual = 36,(a) What is Fcv?(b) Draw the sampling distribution of F, being sure to
If dfTreatment = 3 and dfResidual = 15, state the decision rule.
If dfTreatment = 2 and dfResidual = 76, state the decision rule.
Given the following, complete an ANOVA summary table for a one-way, repeated measures ANOVA:dfSubjects = 11, dfTreatment = 2, dfResidual = 22, dfTotal = 35, SSSubjects = 137.50, SSTreatment = 48.48,
Given the following, complete an ANOVA summary table for a one-way, repeated measures ANOVA:dfSubjects = 19, dfTreatment = 3, dfResidual = 57, dfTotal = 79, SSSubjects = 101.27, SSTreatment = 99.81,
Rejecting the null hypothesis?If Fcv = 3.259 and F = 3.259, was H0 rejected?
Rejecting the null hypothesis?If Fcv = 2.310 and F = 1.96, was H0 rejected?
Using the information in this ANOVA summary table, determine if the null hypothesis is rejected if alpha is set at .05: Source of Sum of Degrees of Mean Variability Squares Freedom Square ratio
Using the information in this summary table, determine if the null hypothesis is rejected if alpha is set at .05: Degrees Source of Sum of of Mean Variability Squares Freedom Square ratio Subjects
Given α = .05, dfTreatment = 5, dfResidual = 45, F = 7.84, and Fcv = 2.579,(a) Write the results in APA format, and(b) State if the results are statistically significant or not.
Given α = .05, dfTreatment = 3, dfResidual = 24, F = 2.76, and Fcv = 3.009,(a) Write the results in APA format, and(b) State if the results are statistically significant or not.
Given α = .05 and the information in this summary table,(a) Write the results in APA format, and(b) State if the results are statistically significant or not: Source of Sum of Degrees
Given α = .05 and the information in this summary table,(a) Write the results in APA format, and(b) State if the results are statistically significant or not: Source of Sum of Degrees
Given the results of a one-way, repeated-measures ANOVA in APA format, F(2, 40) = 1.52, p > .05, interpret them based only on this.
Given the results of a one-way, repeated-measures ANOVA in APA format, F(3, 36) = 12.56, p < .05, interpret them based only on this.
a. Given SSTreatment = 9.89 and SSTotal = 86.98, what is η2?b. Classify it as small, medium, or large.
a. Given SSTreatment = 45.55 and SSTotal = 1,893.44, what is η2?b. Classify it as small, medium, or large.
a. Given the information in this summary table, what is η2?b. Classify it as small, medium, or large. Source of Sum of Degrees of Mean Variability Squares Freedom Square ratio Subjects
a. Given the information in this summary table, what is η2?b. Classify it as small, medium, or large. Source of Sum of Degrees of Mean Variability Squares Freedom Square ratio 233.00
If the results of a one-way, repeated-measures ANOVA are F(2, 42) = 0.63, p > .05 and if η2 = 2.12%,(a) Should the researcher be worried about having made a Type II error?(b) Should he or she
If the results of a one-way, repeated-measures ANOVA are F(2, 58) = 3.00, p > .05 and if η2 =8.11%,(a) Should the researcher be worried about having made a Type II error?(b) Should he or
If k = 3 and dfResidual = 16, what is q if α = .01?
If k = 4 and dfResidual = 87, what is q if α = .05?
If q = 2.90, MSResidual = 12.27, and n = 8, what is HSD?
If q = 3.70, MSResidual = 122.98, and n = 30, what is HSD?
If M1 = 12.83, M2 = 14.98, M3 = 8.22, and HSD = 3.78,(a) Determine for each possible pair of means if the difference is statistically significant, and(b) Comment on the direction of the difference
If M1 = 115.54, M2 = 98.98, M3 = 118.22, and HSD = 14.78,(a) Determine for each possible pair of means if the difference is statistically significant, and(b) Comment on the direction of the
Researchers from PETA and NIH collaborated on a study to examine the effect, on rats, of being reared in laboratory settings. Sets of 3 rats from 8 litters were randomly assigned to three conditions:
A womens studies professor was curious about the long-term effect, on men, of taking a womens studies class. She thought that it would make them more open-minded and less
Eta squared tells the percentage of variability in the ____ variable that is explained by the ____ variable.
The effect size used with one-way, repeated measures ANOVA is ____.
If a researcher suggests replication with a larger sample size, then he or she is probably worried about Type ____ error.
The researcher ends up suggesting a replication of the study with a larger sample size. The null hypothesis probably was / was not rejected.
Eta squared provides information about the size of the ____.
If the null hypothesis is not rejected, one should / should not calculate an effect size.
Results were reported in APA format as F(2, 22) = 0.89, p > .01. The alpha level was ____.
Results were reported in APA format as F(2, 12) = 7.89, p < .05. The null hypothesis was / was not rejected.
If one knows that the null hypothesis for a one-way, repeated-measures ANOVA was rejected, one does / does not know which pairs of sample means had statistically significant differences.
By implementing the ____ from Step 4, one can determine if the results of a statistical test are statistically significant.
The first question to be addressed in an interpretation of a one-way, repeated-measures ANOVA is ____.
The F ratio for one-way, repeated-measures ANOVA is ____ divided by ____.
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