1.4 Experimental Design and Ethics

1.4 Experimental Design and Ethics

11th Grade

23 Qs

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1.4 Experimental Design and Ethics

1.4 Experimental Design and Ethics

Assessment

Quiz

Mathematics

11th Grade

Practice Problem

Medium

Created by

Itzamar Marquez

Used 3+ times

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23 questions

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1.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Left-handedness is the preference for the left hand over the right for everyday activities such as writing. Studies indicate that about 93% of the population may be characterized as right-handed. Researchers would like to conduct a study to determine if left-handed teens differ significantly in their ability to memorize facts than right-handed teens.


The explanatory variable in this study is:

ability to memorize facts.

age.

handedness.

researchers.

none of the above.

2.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Researchers were interested to know whether internal vehicle temperatures vary by outside temperatures. To evaluate this, temperature rise was measured continuously over a 60-minute period in a dark SUV on 16 different clear, sunny days with outside temperatures ranging from 72oF to 96oF.

What type of study is this?

a census.

a survey.

an observational study

an experiment

3.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Steve wanted to see if different types of fertilizer influence sunflower growth. What is the explanatory variable?

type of fertilizer

sunflower grown without fertilizer

4.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

A custodian notices some dirty tables and wants to know which cleaner is more effective. He tests three different cleaners and looks at how well they clean compared to tap water. What is the explanatory variable?

type of cleaner

tap water

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Mrs. Barton wanted to see how different types of music affected students' pulse rates. She played different types of music: heavy metal, rap, R&B, alternative, pop, country, and classical music. Identify the response variable. 

pulse rate
types of music
classical music resulted in the highest pulse rate

Mrs. Barton

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

A student is planning an experiment to find out how the height from which he drops a ball affects how high the ball bounces. The response variable is the _____.

Diameter of the ball
Force acting on the ball
Height that the ball bounces
Height from which the ball is dropped

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the purpose of a control group in an experiment?

To provide a standard for comparison

To introduce new variables

To ensure the experiment is biased

To change the outcome of the experiment

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