Exam 9: Multi-Group Design: Im Feeling Hot, but Is the Earth Hot, Too

In a study examining Internet gaming, which of the following variables would be considered the independent variable based on this research question: How does duration of Internet gaming influence the gamer's attitudes toward social interaction with peers?

A 2008 study examining the experience of physical warmth on the promotion of interpersonal warmth found:

Why was it so important for participants not to sign the petition in the "Cool Earth" bill and for fake signatures to be included on the petition in the research study discussed in the text?

If you have a multigroup design with seven groups, what is the minimum number of participants you should have for reasonable power in your study?

Dr. Cullen and Dr. Rosen are having a debate on the inclusion of distractor items on the follow-up questionnaire following the completion of their experimental drug study. Dr. Cullen insists that distractor questions are extremely useful in:

The results of a one-way ANOVA suggest that the participants' fear response was differentially effected depending on their respective 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 significant value?

Describe one advantage and one disadvantage to using self-report measures in research practice.

The study's ability to find differences between variables when there is a real difference is referred to as:

In a study examining sleep, which of the following variables would be considered the dependent variable based on this research question: How does the duration of sleep influence productivity at work for individuals with sleep apnea?

If researchers unintentionally introduce another variable or construct into a study, then _____ has also been introduced into the experiment.

Warren 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. Warrens wants the overall differences between groups. Which statistic is appropriate to use?

Suggest one explanation as to why individuals who walked in a park would perform better on an attention task than individuals who walked in a downtown area.

Dr. Spruill conducted a one-way ANOVA on a set of data examining political opinions after watching 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 what analysis to test all possible combinations of the conditions?

Dr. Hardin is interested in studying eating disorders among first-generation, second-generation, and third-generation immigrants. She has separated her participants into their respective group and interviewed them, as well as provided them with self-report questionnaires to complete. For Dr. Hardin to achieve adequate power for her study what is the minimum number of participants she would need in each generational condition?

A 2010 study investigating whether darkness increases dishonesty and self-interested behavior while completing a math task found:

Dr. Nixon noted the following results: $\chi$ ²(6, N= 422) = 10.72, p = .001, ᶲ = .20. Which of the following numbers represents the number of participants in this results write-up?

If a researcher unintentionally introduces another variable into an experimental design, this is referred to as:

Dr. Neff conducted a chi-square test of independence between conditions to determine if the distribution among 200 participants was as expected. Dr. Neff was studying sleep cycles for various age groups with and without sleep apnea. Dr. Neff's results yielded a significant result. Which of the following would be the most accurate results write-up for a chi-square test of independence?

What is the importance of having baseline data in a study?

Dr. Pinner is interested in studying the association between likeability and popularity and plans on using two groups and three levels of the independent variable. Dr. Pinner is likely to find: