Question

In: Statistics and Probability

A researcher is interested in how personality types are influenced by distractions. Individuals were selected to...

A researcher is interested in how personality types are influenced by distractions. Individuals were selected to represent two different personality types: introverts and extroverts. Half of the participants in each group were tested in a noisy room, filled with distraction, whereas the other half were tested in a quiet, calm room. The researcher was measuring the number of errors committed by each individual. He found that introverted personalities in a quiet room scored an average of 7, introverted personalities in a noisy room scored an average of 15, extroverted personalities in a quiet room scored an average of 13, and extroverted personality in a noisy room scored an average of 8.

a. What are the Independent variables? Include the levels of each.

b. What is the dependent variable?

c. Decide whether there are main effect(s). Interpret.

d. Decide whether there is/are interaction(s). Interpret.

Solutions

Expert Solution

a. Independent variable are personality types and distractions.

b. Dependent variable is number of errors.

c. there are no main effects.

d. But there is interaction effects


Related Solutions

A researcher is interested in examining how the net wealth of individuals changes over the course of their lifetimes.
A researcher is interested in examining how the net wealth of individuals changes over the course of their lifetimes. She has collected the following data regarding the age X, in years, and net worth Y, measured in thousands of dollars, of 12 individuals in the form of (x, y) pairs: (24, 153), (34, 201), (38, 297), and (83, 139). Calculate the correlation coefficient between the age and net worth of individuals:A. -0.1B. -0.361C. 0D. 0.206
A researcher was interested in utilities provided by city governments. The researcher randomly selected 20 counties...
A researcher was interested in utilities provided by city governments. The researcher randomly selected 20 counties from a list of all counties in the U.S. From each of these counties the researcher then contacted each city government (a total of 192) and found that 12 (6.25%) of them provided electricity to their residents. In this situation the sampling frame is Select one: a. the list of all counties in the U.S. b. the 316 cities. c. the 20 counties. d....
A researcher is interested in whether music tastes differ by personality type. The table below presents...
A researcher is interested in whether music tastes differ by personality type. The table below presents the observed and expected frequencies. Does a statistically significant relationship exist between personality type and music preference? Conduct a hypothesis test to see. Follow the five-step model with an alpha level of 0.05. Make sure to go through each step and interpret the results in terms of the research question above. Round to twoplaces past the decimal point for your calculations and final answers....
A researcher was interested in the effects of alcohol on attractiveness of mate selected (referred to...
A researcher was interested in the effects of alcohol on attractiveness of mate selected (referred to as the beer goggle effect). She compared the rating (by independent raters) on level of attractiveness of the partners that young people chose at a party. She compared a group before using alcohol then after using alcohol. Assessment was whether their chosen partners differed in levels of attractiveness. Higher scores indicated more attractive partners. The attractiveness of partner for each participant (measured by independent...
A health researcher is interested in the relationship between individuals participation in a stress managemet program...
A health researcher is interested in the relationship between individuals participation in a stress managemet program located on site and promoted by the organization's employee wellness program. The stress management program consists of yoga, guided visualization, mindfulness, and meditation. Identify two outcomes that would be important for this study and explain how you would operationalize them. Explain where the data would come from or how you would operationalize them.
A medical researcher is interested in whether calcium intake differs, on average, among elderly individuals with...
A medical researcher is interested in whether calcium intake differs, on average, among elderly individuals with normal bone density, with osteopenia (a low bone density that may lead to osteoporosis), and with osteoporosis. He recruits consenting 60 individuals over the age of 65 using his patient records from his hospital (20 from each of the three bone density groups). You may assume that the individuals in each group constitute a simple random sample from consenting patients from that hospital. The...
Show all work please A researcher is interested in understanding the predictors of why individuals bully...
Show all work please A researcher is interested in understanding the predictors of why individuals bully other individuals.  She collects the following data. ID of Respondent # of Friends who Bully Respondent was a Bully Victim (0 = No; 1 = Yes) Gender (0 = Female; 1 = Male) # of Times Respondent Bullied Others 1 2 1 1 5 2 4 1 0 2 3 3 0 1 8 4 2 0 0 4 5 6 1 1 6 6...
*Please provide step-by-step answer* Question: A researcher is interested  in the relationship between birth order and personality....
*Please provide step-by-step answer* Question: A researcher is interested  in the relationship between birth order and personality. A sample of n=100 people is obtained, all of whom grew up in families as one of three children. Each person is given a personality test, and the researcher also records the person's birth-order position (1st born, 2nd born, or 3rd). The frequencies from this study are shown in the following table. Birth Position 1st 2nd 3rd Outgoing 13 31 16 Reserved    17...
Identify how each of the following individuals is influenced by unexpected inflation. a. A homeowner who...
Identify how each of the following individuals is influenced by unexpected inflation. a. A homeowner who has taken on a large house mortgage is  (Click to select)  worse off  better off  unaffected  due to unexpected inflation. b. A lawyer whose costs and revenues both rise by the inflation rate is  (Click to select)  worse off  unaffected  better off  due to unexpected inflation. c. The owner of a heavily indebted restaurant is  (Click to select)  better off  unaffected  worse off  due to unexpected inflation. d. A worker with a union contract that includes a COLA clause...
How might individuals’ experiences of poverty be influenced by the ideology of our current provincial and...
How might individuals’ experiences of poverty be influenced by the ideology of our current provincial and federal governments? For the answer you may choose to draw on the Poor ( in context of canada  
ADVERTISEMENT
ADVERTISEMENT
ADVERTISEMENT