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b. What is the dependent variable? Time it takes to eat the eggs or eating speed c. What level of measurement is used to measure the DV (nominal, ordinal, interval, or ratio)?

b. What is the dependent variable? Time it takes to eat the eggs or eating speed c. What level of measurement is used to measure the DV (nominal, ordinal, interval, or ratio)?

MATLAB: An Introduction with Applications
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
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PSY 240 Homework 1 1. Let's say we are interested in whether food color affects eating speed. We recruit 100 participants to be in our study and randomly divide them into two groups. The people in Group 1 get a plate of regular scrambled eggs to eat. The people in Group 2 get a plate of scrambled eggs to eat that have been dyed with green food coloring (that's right, green eggs with no ham). Then, we surreptitiously measure the time (mm:ss) it takes each person to eat the plate of scrambled eggs. a. What is the independent variable? Food coloring/dye b. What is the dependent variable? Time it takes to eat the eggs or eating speed c. What level of measurement is used to measure the DV (nominal, ordinal, interval, or ratio)? d. Does this study use a correlational, experimental, or quasi-experimental design? How do you know? This study uses experimental design because there is random selection and therefore cause and effect conclusions can be made. 2. You would like to know whether the amount of vitamin C you take influences the number of colds you get. Design a correlational, experimental, and quasi- experimental study Correlation: We could ask: What is the relationship between the number of colds between high school students and the amount of vitamin c they take. Because this is a natural experiment no yarriables are being altered we would answer this question. iunt m u much itemin a the at ant take a nd heu often 4hougatniak 37°F
Transcribed Image Text:PSY 240 Homework 1 1. Let's say we are interested in whether food color affects eating speed. We recruit 100 participants to be in our study and randomly divide them into two groups. The people in Group 1 get a plate of regular scrambled eggs to eat. The people in Group 2 get a plate of scrambled eggs to eat that have been dyed with green food coloring (that's right, green eggs with no ham). Then, we surreptitiously measure the time (mm:ss) it takes each person to eat the plate of scrambled eggs. a. What is the independent variable? Food coloring/dye b. What is the dependent variable? Time it takes to eat the eggs or eating speed c. What level of measurement is used to measure the DV (nominal, ordinal, interval, or ratio)? d. Does this study use a correlational, experimental, or quasi-experimental design? How do you know? This study uses experimental design because there is random selection and therefore cause and effect conclusions can be made. 2. You would like to know whether the amount of vitamin C you take influences the number of colds you get. Design a correlational, experimental, and quasi- experimental study Correlation: We could ask: What is the relationship between the number of colds between high school students and the amount of vitamin c they take. Because this is a natural experiment no yarriables are being altered we would answer this question. iunt m u much itemin a the at ant take a nd heu often 4hougatniak 37°F
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