Exam 9: Multigroup Design: Im Feeling Hot, but Is the Earth Hot, Too

Dr. Omar noted the following results in his manuscript: F(4, 220) = .72, p = .03, eta² = .40. Which of the following numbers represents the F score in this results write-up?

Deandre is a new teacher at a local elementary school. He decides to conduct a brief study testing the fifth graders' knowledge of science at the beginning of the school year and at the end of the school year. He will randomly assign students to either a "hands-on" science group that does experiments with each lesson plan or to a "video" science group that assigns videos and online tutorials in support of the science lesson plans. Based on this information which of the following would be considered the independent variable (IV)?

Which of the following statistics is produced by an ANOVA?

Researchers are inclined to use multigroup designs because there are a number of advantages to such a paradigm. Each of the following is considered an advantage of multigroup design, EXCEPT:

Which of the following best represents a study using methodological pluralism?

Dr. Lumen's recent findings support the notion that his null hypothesis is false. This would suggest that Dr. Lumen's study:

Beck randomly assigned 60 participants to describe a positive childhood memory, a negative childhood memory, or a neutral childhood memory and then complete a mood questionnaire. Beck wants the overall differences between groups. Which statistic is appropriate to use?

The results of a one-way ANOVA suggest that the participants' fear response was differentially impacted depending on their respective fear condition: spiders (M = 44; SD = 4.20), snakes (M = 62; SD = 7.1), and dogs (M = 21; SD = 2.20). There was a significant difference: F (2, 92) = .67, p = .03. Based on this information, what was the between-subjects degrees of freedom?

Deandre is a new teacher at a local elementary school. He decides to conduct a brief study testing the fifth graders' knowledge of science at the beginning of the school year and at the end of the school year. He will randomly assign students to either a "hands-on" science group that does experiments with each lesson plan or to a "video" science group that assigns videos and online tutorials in support of the science lesson plans. Based on this information which of the following would be considered the dependent variable (DV)?

The variable must be _____ in order to conduct a chi-square test of independence.

(Scenario II) According to Scenario II, Black and colleagues used an ANOVA to analyze their data. Of the statements below, which would the ANOVA be able to support?

Dr. Spruill conducted a one-way ANOVA on a set of data examining political opinions after participants watched different propaganda footage from different eras. Each condition saw a different reel of footage and one condition simply watched a movie with no political agenda. Dr. Spruill's one-way ANOVA yielded significant results, but it was not able to tell him where the specific difference existed. Dr. Spruill will need to follow-up with which analysis to test all possible combinations of the conditions?

Which of the following is a results write-up for an ANOVA?

The F statistic included in a results write-up for a one-way ANOVA includes all of the following information, EXCEPT:

What database was used to perform an extensive literature review regarding the climate change study discussed in the text?

Dr. Pantoja conducted a chi-square test of independence between conditions to determine if the distribution among 175 participants was as expected. Dr. Pantoja was studying sleep cycles for various age groups with and without sleep apnea. Dr. Pantoja's results did not yield a significant result. Which of the following would be the most accurate results write-up for a chi-square test of independence?

In an experiment studying biological treatment effectiveness for ADHD in adults, which of the following would be considered a placebo?

To determine if food allergies influence participants' taste palate, researchers conducted a chi-square test of independence between conditions . Based on this information, what was the effect size for this study?

(Scenario III) A follow-up study was done using a human sample. Instead of chow the human participants were given pre-made meals for the duration of the study. To help prevent the participants from identifying the purpose of the study, they were told to complete the Fatigue Scale (FS) each evening. In this study, Amber was in a high protein /low carb/low fat condition and her classmate, Jeff, was tested in a low protein/high carb/high fat condition. After sharing their experiences with each other they determined that the study was probably about the relationship between diet and fatigue. Amber and Jeff are engaging in:

In an experimental design, if participants were not influenced by the _____, there really was not an experiment.