RESEARCH METHODS F/ BEHAV.(LL)-W/MINTAP
6th Edition
ISBN: 9781337755016
Author: GRAVETTER
Publisher: CENGAGE L
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Textbook Question
Chapter 11.1, Problem 1LO
Define a factorial research design, including the terms factor and level, and identity and describe factorial designs when they appear in a research report.
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Chapter 11 Solutions
RESEARCH METHODS F/ BEHAV.(LL)-W/MINTAP
Ch. 11.1 - Define a factorial research design, including the...Ch. 11.2 - Define a main effect for one factor and an...Ch. 11.2 - Explain how the existence of an interaction can...Ch. 11.2 - Describe and explain the independent relationship...Ch. 11.3 - Explain how a factorial study can combine...Ch. 11.3 - Identify the statistical analyses that are...Ch. 11.4 - Describe three specific applications of the...Ch. 11 - In addition to the key words, you should also be...Ch. 11 - In a classic study, Shrauger (1972) examined the...Ch. 11 - Suppose a researcher conducts a two-factor study...
Ch. 11 - The following matrix represents the results (the...Ch. 11 - The following data show the pattern of results...Ch. 11 - Explain why the main effects in a factorial study...Ch. 11 - Explain what is meant by the concept that main...Ch. 11 - In Figure 11.5, we show three combinations of main...Ch. 11 - For a two-factor research study with two levels...Ch. 11 - A researcher would like to use a factorial study...Ch. 11 - A two-factor analysis of variance is used to...Ch. 11 - A researcher has demonstrated that a new...
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- Define the term coefficients?arrow_forwardPsychologists at Disney World measured factors that affect the scariness of the soundtrack for their Haunted House ride. In particular, they were interested in the loudness of the screams (soft versus loud) and the length of the screams (short versus long). They used a 2 × 2 factorial design to test how these factors combined. They collected data from 10 different riders in each of the four conditions. Each rider rated the scariness of the ride on a nine-point scale. short screams long screams soft screams T=38, n = 10, SS = 13.6 T=64, n = 10, SS = 22.4 loud screams T=52, n=10, SS = 29.6 T=50, n=10, SS = 16.0 For these data: G = 204, N = 40, X2 = 1156. 1. Sketch a dataplot of the mean rating in each condition. 2. Calculate SS total, the total sum of squares 3. Calculate SSwithin, the within-treatments sum of squares. 4. Calculate SSbetween, the between-treatments sum of squares. 5. Calculate SSA the sum of squares for Factor A (length of scream). 6. Calculate SSB, the sum of squares…arrow_forwardWhat are the factors in a factorial design? A. The independent variables B. The experimental variables C. The organismic variables D. The dependent variablesarrow_forward
- A real estate major collected information on some recent local home sales. The first 6 lines of the database appear in the accompanying table. The columns correspond to the house identification number, the community name, the zip code, the number of acres of the property, the year the house was built, the market value, and the size of the living area (in square feet). Do the data appear to have come from a designed survey or experiment? What concerns might you have about drawing conclusions from this data set? E Click the icon to view the data table. Do the data appear to have come from a designed survey or experiment? O A. It is not clear if the data were obtained from an experiment. They are certainly not from a survey. O B. It is not clear if the data were obtained from a survey. They are certainly not from an experiment. O C. It is not clear if the data were obtained from a survey or an experiment. O D. The data were certainly not obtained from survey or an experiment. What…arrow_forwardResearchers recorded the number of injuries suffered by athletes participating in basketball, volleyball, swimming, ice hockey, and tennis during the course of one year. Also, the athletes were classified as either beginners or elite. This study has a appear in the blanks. factorial design. Write the values that shouldarrow_forwardFortune magazine publishes an annual list of 100 best companies to work for. The data in the “HW7.xlsx” file on Moodle shows a portion of the data for a sample of 20 of the companies that made the top 100 list for 2012. The column labeled Rank shows the rank of the company in the Fortune 100 list. The column labeled Size indicates whether the company is a small (fewer than 2500 employees), midsize (2500-10,000 employees) or large company (above 10,000 employees). The column labeled Salaried ($1000s) shows the shows the average annual salary for salaried employees rounded to the nearest $1000. Finally, the column labeled Hourly ($1000s) shows the average annual salary for hourly employees rounded to the nearest $1000. a) Use these data to develop an estimated regression equation that could be used to predict the average annual salary for salaried employees given the average annual salary for hourly employees. b) Use ? = 0.05 to test for overall significance. If you were conducting…arrow_forward
- Researchers conducted a study on brain size as measured by pixels in a magnetic resonance imagery (MRI) scan. The numbers are in hundreds of thousands of pixels. The data table provides the sizes of the brains and the gender. Complete parts a through c. Click the icon to view the data table of brain size and gender. a. Is the format of the data set stacked or unstacked? The format of the data is stacked. b. Explain the coding. What do 1 and 0 represent? The data value 1 represents and the data value 0 represents c. If you answered "stacked" in part a, then unstack the data into two columns labeled Male and Female. If you answered "unstacked," then stack the data into one column with an appropriate name for the stacked variable. O A. В. С. Brain Size Female Male Male Female Male 9.3 9.5 9.3 9.3 9.5 9.5 9.7 9.5 9.5 9.7 9.5 9.9 9.7 1 9.7 9.9 9.7 9.9 9.9 9.9 9.9 9.7 9.9 1 9.9 9.9 9.9 9.9 1 D. B.arrow_forwardA random sample of cars categorized by small, medium and large was selected to investigate whether the size of the cars appears to affect highway fuel consumption. The factor levels a. size of cars O b. small, medium, largearrow_forwardSelect the correct number of FACTORS and LEVELS for this study: A researcher would like to test if different studying strategies will affect the time it takes for one to complete an exam. The researcher assigns a group of volunteers ranging from middle school to undergraduate students to a group that crams for 12 hours before exam, a group that crams 3 days before exam, and a group that studies for 1 week before the exam. 3 Factors, 1 Level 1 Factor, 1 Level 3 Factors, 3 Levels 1 Factor, 3 Levelsarrow_forward
- Please show complete solutions. Will upvote, thank you.arrow_forwardNonearrow_forwardHow many factors are in this scenario? For each clearly labeled factor, how many levels it has and list them. Also label each factor as "BS" or "WS". what is the statistical output what are the results? full write-up to include a complete statistical notation.. The write-up also needs understanding. If significant, state how it is sig. If it is not significant, what does that mean in layman's terms? How many factors are in this scenario? For each clearly labeled factor, how many levels it has and list them. Also label each factor as "BS" or "WS". please show statistical output what are the results? full write-up to include a complete statistical notation.. The write-up also needs understanding. If significant, state how it is sig. If it is not significant, what does that mean in layman's terms? Smiling pictures Neutral pictures Male photos Female photos Male photos Female photos Participant A 8.7 8.2 8.5 9.0 Participant B 9.1 8.0 9.0 8.5 Participant C 8.3 9.0 8.3…arrow_forward
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