Exam (elaborations)
STATISTICS MATH 125 - MODULE 1 HOMEWORK 1.6 QUESTIONS AND 100% ANSWERS 2024
- Course
- Institution
STATISTICS MATH 125 - MODULE 1 HOMEWORK 1.6 QUESTIONS AND 100% ANSWERS 2024
[Show more]
Content preview
STATISTICS MATH 125 - MODULE 1HOMEWORK 1.6 QUESTIONS AND 100%
ANSWERS 2024
What is replication in an experiment? - ANSWER Replication is applying each treatment to more than
one experimental unit.
Determine whether the following statement is true or false.
Generally, the goal of an experiment is to determine the effect that the treatment will have on the
response variable. - ANSWER True
A school psychologist wants to test the effectiveness of a new method of teaching mathematics. She
recruits 300 second-grade students and randomly divides them into two groups. Group 1 is taught by
means of the new method, while group 2 is taught by traditional methods. The same teacher is assigned
to teach both groups. At the end of the year, an achievement test (graded on a scale from 1-10) is
administered and the results of the two groups are compared. Complete parts (a) through (i) below -
ANSWER (a) What is the response variable in this experiment? The scores on the achievement tests of
both group 1 and group 2
(b) Is the response variable qualitative or quantitative? The response variable is quantitative because it is
a measurement.
(c) Which of the following explanatory variables is manipulated? Method of teaching
(d) What are the treatments? How many treatments are there? The treatments are the new teaching
method and the traditional teaching method. There are 2 treatments.
(e) How are the factors that are not controlled dealt with? Random assignment
(f) Which group serves as the control group?
Group 2 serves as the control group because this group corresponds to the standard method that will be
compared to the other method.
(g) What type of experimental design is this? Completely randomized design
(h) Identify the subjects. The 300 students
(i) Draw a diagram to illustrate the design. Choose the correct figure below. Random assign of students
to treat. Group1 - New treatment Group2 - Traditional treatment. Compare scores.
To help assess student learning in her developmental art courses, an art professor at a community
college implemented pre- and post-tests for her developmental art students. A knowledge-gained score
The benefits of buying summaries with Stuvia:
Guaranteed quality through customer reviews
Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.
Quick and easy check-out
You can quickly pay through credit card or Stuvia-credit for the summaries. There is no membership needed.
Focus on what matters
Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!
Frequently asked questions
What do I get when I buy this document?
You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.
Satisfaction guarantee: how does it work?
Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.
Who am I buying these notes from?
Stuvia is a marketplace, so you are not buying this document from us, but from seller brainscape. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $5.99. You're not tied to anything after your purchase.
Can Stuvia be trusted?
4.6 stars on Google & Trustpilot (+1000 reviews)
83637 documents were sold in the last 30 days
Founded in 2010, the go-to place to buy study notes for 14 years now