What might be an appropriate way to deal with missing data?
A. Ignore them.
B. Go back to the participant and demand an answer.
C. Define missing values using the recode function.
D. Start the study again, taking more care with data recording.
Answer: C
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Identify the kind of correlation appropriate for use in solving each of the following problems. To find the relationship between passing or failing a test and responses on a survey item answered "yes" or "no."
a. Pearson's r c. phi coefficient b. Spearman's rho
What is a best practice when interacting across cultures?
a. Teaching others how to abide by your cultural values through example b. Distinguishing between your intention and its actual impact on others c. Using your preconceptions about a culture to guide your interaction d. Avoiding topics that bring up your cultural differences
A researcher in a retail-marketing unit wanted to test the impact of four different advertising campaigns for a new product (‘TV’, ‘Social Media, ‘Print Media’ and ‘Celebrity’) on a group of forty randomly selected consumers. She wanted to compare the impact of each advertising campaign on each individual consumer’s likelihood of purchasing the product and across the whole group, as well as any interaction effects. What sort of test design best suits this study?
A. Independent factorial design B. ANOVA C. Repeated-measures factorial design D. Multiple linear regression.
Answer the following statement(s) true (T) or false (F)
In 2011, a four-year-old mixed-race student was less likely to have received more services than an American Indian or Alaskan Native.