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OleMash [197]
3 years ago
13

A student conducted an experiment to determine if listening to different types of music would affect pulse rate. She thought tha

t pulse rate would change with different types of music. Each person participating in her experiment listened to seven different selections of music for 30 seconds each. The pulse rates were taken after each 30-second interval of music. Based on her experiment, the student concluded that a personâs pulse rate changed when listening to different types of music. The component missing from this experiment is a (1) prediction (2) hypothesis (3) control group (4) research plan
English
1 answer:
Assoli18 [71]3 years ago
6 0

Answer:

(3) control group

Explanation:

Control group refers to the group of standar individuals who do not receive treatment by researchers, so that their results are compared with the experiential group which did receive treatment.

In the experiment about pulse rate according to music, the student does not include the average pulse rate of the control group that was not exposed to different types of music.

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Why kids should get holiday breaks from school

Many students study through their school terms for up to three months. These students eagerly anticipate holiday because they provide a welcome breaks for them and teachers from classes. Many people are of the opinion that these breaks are usually too long, and do take away valuable class time from students, thereby impacting their performance negatively in the following school year. These individuals do not see benefits these holiday breaks afford. The purpose of this essay is to show the importance of holiday breaks for these kids.  

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