Answer: The answer is -1
Explanation: 3+3 = 6 and then following the order of operations you substract 7 giving you the answer -1
Answer:
18 is the sum of the two integers.
Explanation:
65 is divisible by 4 numbers: 1, 5, 13, and 65.
Meaning 65 x 1 = 65 and 13 x 5 = 65.
So in this case, add 13 and 5 which equals 18.
18 is the sum of the two integers.
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The technique to improve internal validity is D) Addition of a control group.
<h3>What is
internal validity?</h3>
Internal validity serves as the study which bring about the establishment of a trustworthy cause-and-effect relationship that can be found in treatment and an outcome.
it should be noted that Internal validity also helps to eliminate alternative explanations , hence, The technique to improve internal validity is D) Addition of a control group.
Learn more about internal validity on:
brainly.com/question/968894
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COMPLETE QUESTOIN:
Which of the following is a technique to improve internal validity ____________?
A) Experimenter expectancy
B) Participant bias
C) Use of a confederate
D) Addition of a control group
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