1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Alenkinab [10]
4 years ago
8

A school district decides to compare a new math textbook with the textbook that has been used for the past few years. Each of th

e fourth graders in one school is randomly assigned to be in one of two classes, one in which a teacher continues using the old book and another in which a new teacher uses the new book. The school administrators compare the average scores of the two classes on a mathematics standardized test at the end of the year to determine which book is better.Which of the following is a potential confound in this study?a. Both classes have children who report that they do not like math.b. The teachers have different amounts of teaching experience.c. The standardized test is graded incorrectly.d. There are different children in fourth grade this year than there were last year.
Social Studies
1 answer:
GarryVolchara [31]4 years ago
4 0

Answer:

B. The teachers have different amounts of teaching experience.

Explanation:

The teachers having different amounts of teaching experience is the only problem that varies systematically along with the textbook version, so it is the only one that could be a confound. The Longer a teacher teaches a particular Course the more vast and learned he/she becomes and the more experience he/she becomes. He will know methods and things to do to ensure that the students understands better. Unlike a teacher that doesn't have much experience. So both of them handling the same course will definitely yield different results.

You might be interested in
Explain the role of the citizen in an Autocratic and Democratic government. (Which type has the most citizen participation, whic
liubo4ka [24]

Answer:

Below.

Explanation:

Democratic governments allowed citizens to participate in government, autocratic government barely let citizens partake in anything government associated.

3 0
3 years ago
PLEASE ANSWERRRRRRR
Alex Ar [27]
D) georgia plays a significant role in the US economy
6 0
3 years ago
Why do some states have more representatives than others in the House of Representatives?
stepan [7]

Answer:

The House 0f Representatives depends on the state's population the more the population, the more the members.

Explanation:

5 0
3 years ago
Not one, but both, of daniel's parents have schizophrenia. what is the approximate lifetime risk that daniel himself will develo
prisoha [69]
<span>It has been said that certain genes often skip a generation. So, if your parents have a particular abnormality a child might not necessarily get the same abnormality. In the case of schizophrenia I cannot imagine that two schizophrenics would even take a chance of having children. Even if they are on medication it does not mean that their life can be even close to normal. After all, they have to take very goodo care of themselves and also their child. Schizophrenia often does not show up until a person hits the approximate age of 20. There is also a factor of something actually triggering the schizophrenia. Going back to my first sentence I can only hope, for Daniel's sake that he does not develop this mental illness.</span>
4 0
4 years ago
Which of the following groups is considered a primary user of a state or local government's general-purpose external financial s
Karolina [17]

Answer: A) Citizens.

Explanation:

General purpose financial statement is the statement that consist of balance sheet, statement of cash flow, equity statement and income statement.These principle are used for governing general account.The most common users of these statement are citizens who can be investors, creditors ,lender etc.

Other options are incorrect because managers,organizational workers, interest group or executives do not use general purpose financial statement as the main user .Thus, the correct option is option(A).

5 0
4 years ago
Other questions:
  • Lonnie needs to make a long business trip back to of Minnesota but is uncertain of when to leave. According to the weather repor
    14·1 answer
  • Indicate the point where a monopoly will set its output.
    6·2 answers
  • . 11 Which of the following government offices currently has a limit on the number of terms a person can hold that position? Sel
    6·1 answer
  • How did the seas affect Greek trade patterns
    12·1 answer
  • What statement BEST explains Talmadge’s dislike of the New Deal?
    9·2 answers
  • State the three economic roles that most people in the United States perform:
    13·1 answer
  • Meaning for monastery?
    5·2 answers
  • Give an example of a biological, psychological and a social factor that might contribute to gender differences
    10·1 answer
  • How did the Crusades influence Europe’s demand for exotic and luxury goods?
    8·1 answer
  • He stated “I think, therefore I am."<br>​
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!