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den301095 [7]
4 years ago
12

A high school teacher conducted a test of a new approach to teaching math. Students were given a pretest when their math class b

egan and a posttest at the end of the semester. The students' math performance improved. The teacher learned near the end of the semester, however, that in their science classes the students were using new computer software that included much of the math the teacher covered in his course. What threats to internal validity does the new computer software represent?
Computers and Technology
1 answer:
MakcuM [25]4 years ago
5 0

Answer:

It represents a threat of instrument change.

Explanation:

Internal validity is a method to determine if research has been performed properly. It is based on the number of confounding variables present in the experiment. If an experiment is carried out and confounding variables are avoided, the internal validity is high, and viceversa. In an ideal context, the experiment's internal validity will be high, which will mean its results will be trustworthy.

The students, by making use of a computer software, lowered the validity of the test performed by the teacher.

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What happens it the offshore team members are not able to participate in the iteration demo due to time zone/infrastructure issu
professor190 [17]

The best option that will suite is that there will be no major issues since the offshore leads and the onsite members participated in the demo with the Product Owner/Stakeholders they can cascade the feedback to the offshore members

Explanation:

Iteration demo is the review which is done to gather the immediate feedback from the stakeholders on a regular basis from the regular cadence. This demo will be one mainly to review the progress of the team and the and to cascade and show their working process

They show their working process to the owners and they and the other stakeholders and they get their review from them and so there will be no issues if the members are not able to participate

5 0
4 years ago
In “Plugged In,” the author’s purpose is to persuade. Which of the following quotes from the text shows that the author’s purpos
lisabon 2012 [21]

The quote from the text that shows that the author’s purpose is to persuade is D. Critics say that kids stare at computers and TVs all day and do not get enough exercise. The facts stand in counterpoint to this belief.

An argumentative writing prompt is written in order to convince the readers about a particular issue.

According to the author, the fact that children are involved in watching movies, playing games, listening to music, etc doesn't mean that they can't still be productive.

There are some critics that believe that kids stare at computers and TVs all day and do not get enough exercise. This was countered by the author who stated that kids can still engage in exercises or do other productive things.

Read related link on:

brainly.com/question/24861556

3 0
2 years ago
What is the formula for determining the number of possible hosts on a network?
fredd [130]
2**(32 - netmask) - 2 = number of nodes available

The netmask is in CIDR (Common Internet Domain Routing) notation, without the slash.

One of the nodes would be needed for a router or else you can't communicate with other networks.
3 0
3 years ago
Write a function with this prototype:
sp2606 [1]

Answer:

Following are the code to this question:

#include <iostream> //defining header file  

using namespace std;

void numbers(ostream &outs, const string& prefix, unsigned int levels); // method declaration

void numbers(ostream &outs, const string& prefix, unsigned int levels) //defining method number

{

string s; //defining string variable

if(levels == 0) //defining condition statement that check levels value is equal to 0

{

outs << prefix << endl;  //use value

}

else //define else part

{

for(char c = '1'; c <= '9'; c++) //define loop that calls numbers method

{

s = prefix + c + '.'; // holding value in s variable  

numbers(outs, s, levels-1); //call method numbers

}

}

}

int main() //defining main method

{

numbers(cout, "THERBLIG", 2); //call method numbers method that accepts value

return 0;

}

Output:

please find the attachment.

Explanation:

Program description:

  • In the given program, a method number is declared, that accepts three arguments in its parameter that are "outs, prefix, levels", and all the variable uses the address operator to hold its value.
  • Inside the method a conditional statement is used in which string variable s and a conditional statement is used, in if the block it checks level variable value is equal to 0. if it is false it will go to else block that uses the loop to call method.
  • In the main method we call the number method and pass the value in its parameter.  

5 0
3 years ago
Computer identity theft differs from theft in the real world in what major way?
CaHeK987 [17]

Answer:

The answer is B

5 0
3 years ago
Read 2 more answers
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