Question

In: Statistics and Probability

List what the a.) independent and b.) dependent variables are and c.) experimental and d.) control...

List what the a.) independent and b.) dependent variables are and c.) experimental and d.) control group are in the following study.

A study wanted to look at the effects of coffee on students' performance in school. The researchers gave one group of students one cup of coffee a day and gave another group a glass of warm water.

Solutions

Expert Solution

Answer:

a.) independent: coffee

b.) dependent variables: students' performance

c.) experimental: the group which receives one cup of coffee a day.

d.) control group: the group which receives a glass of warm water

Explanation:

A variable in a study is said to be independent if it is being controlled or changed by the researcher such that it is independent to vary and a variable is said to be dependent if the outcome of this variable dependent on the other variable. In this study, the researcher wants to see the effect of coffee on students' performance in school which means the variable students' performance depends on the coffee. Hence the variable coffee is an independent variable and students' performance is a dependent variable

The group which receives the treatment (independent variable) is called the experimental group and the group which doesn't receive the treatment is called the control group. In this study, the group which receives one cup of coffee a day is the experimental group, and the group which receives a glass of warm water. is the control group

orchestra answered 2 years ago
Next > < Previous

Related Solutions

what are dependent and independent variables
what are dependent and independent variables
The null hypothesis for the chi-square test of independence is that the variables are a. Dependent b. Independent c. Related d. Always 0
The null hypothesis for the chi-square test of independence is that the variables area. Dependentb. Independent c. Relatedd. Always 0
Consider an experiment with four independent variables: A, B, C, and D. Factor A has 3...
Consider an experiment with four independent variables: A, B, C, and D. Factor A has 3 levels and is a between-subjects variable; Factor B has 2 levels and is a within-subjects variable; Factor C has 2 levels and is a between-subjects variable; Factor D has 3 levels and is a within-subjects variable. 1. How many “cells” or “conditions” or “groups” are there in this experiment? 2. If you want to test 10 participants per cell, how many TOTAL participants will...
For each of the following statements, list the independent and dependent variables, and give the research...
For each of the following statements, list the independent and dependent variables, and give the research hypothesis and the null hypothesis. An official at the state transportation office thinks that switching over from manual to automated toll collection will decrease administrative costs, and asks you to do a survey of other states costs and collection practices to determine if this is true. The local firefighter’s union in your town claims that its salaries are lower than those of firefighters in...
Use the accompanying set of dependent and independent variables to complete parts a through d below....
Use the accompanying set of dependent and independent variables to complete parts a through d below. y 10 11 15 15 20 24 27 32 x 1 2 5 5 9 7 11 16 21 x 2 16 10 13 10 2 8 7 4 Click the icon to view the data set. ​a) Construct a​ 95% confidence interval for the dependent variable when x1=9 and x 2=11. The​ 95% confidence interval is from a lower limit of ______ to...
Assume that: float a, b, c, d, f; and variables b, c, d, f are initialized....
Assume that: float a, b, c, d, f; and variables b, c, d, f are initialized. Write a line of c++ code that calculates the formula below and stores the result to the variable a:
Refresher on Variables: Classifying variables as independent or dependent: The independent variable is the one being...
Refresher on Variables: Classifying variables as independent or dependent: The independent variable is the one being manipulated or grouped in the study for comparison. A tip to remember this is to think that independent starts with “I” and I, the researcher, manipulate that variable or have control over who is grouped in the study. The way we will be using independent variables in this course is in terms of between group analysis, so our focus will be on groups being...
1- In discriminant analysis, the dependent variable is ________ and the independent variables are ________ in...
1- In discriminant analysis, the dependent variable is ________ and the independent variables are ________ in nature. a interval; categorical b ordinal; interval c categorical; interval d ordinal; categorica 2- s one of the statistics associated with discriminant analysis, ________ are obtained when the unstandardized coefficients are multiplied by the values of the variables and the products are summed and added to the constant term. a Wilks' λ b discriminant scores c discriminant function coefficients d eigenvalue
1- In discriminant analysis, the dependent variable is ________ and the independent variables are ________ in...
1- In discriminant analysis, the dependent variable is ________ and the independent variables are ________ in nature. a interval; categorical b ordinal; interval c categorical; interval d ordinal; categorica 2- s one of the statistics associated with discriminant analysis, ________ are obtained when the unstandardized coefficients are multiplied by the values of the variables and the products are summed and added to the constant term. a Wilks' λ b discriminant scores c discriminant function coefficients d eigenvalue
Consider the cross: A/a; b/b; C/c; D/d; E/e x A/a; B/b; c/c; D/d; e/e a) what...
Consider the cross: A/a; b/b; C/c; D/d; E/e x A/a; B/b; c/c; D/d; e/e a) what proportion of the progeny will phenotypically resemble the first parent? b) what proportion of the progeny will genotypically resemble neither parent?
ADVERTISEMENT
Subjects
ADVERTISEMENT
Latest Questions
ADVERTISEMENT