Experimental Design and Sampling Practice

Experimental Design and Sampling Practice

10th Grade

15 Qs

quiz-placeholder

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Experimental Design and Sampling Practice

Experimental Design and Sampling Practice

Assessment

Quiz

Mathematics

10th Grade

Practice Problem

Easy

CCSS
HSS.IC.B.3

Standards-aligned

Created by

Rob Sharpe

Used 1+ times

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15 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

In a completely randomized experimental design, which of the following factors is most critical to ensure the validity of the results?

The size of the control group

The randomization process used to assign subjects to groups

The number of variables being tested

The duration of the experiment

2.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

Which of the following scenarios best illustrates the concept of random sampling in a population of 10,000 individuals?

Selecting the first 100 individuals who volunteer for the study

Using a computer program to randomly select 500 individuals from the entire population

Choosing 200 individuals from a specific neighborhood

Selecting individuals based on their last names alphabetically

Tags

CCSS.HSS.IC.B.3

3.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

When using stratified sampling, which of the following is a potential pitfall that researchers must avoid to ensure the sample is representative?

Over-representing one stratum compared to others

Using a small sample size

Including too many strata

Randomly selecting individuals within each stratum

Tags

CCSS.HSS.IC.B.3

4.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

Which type of bias is most likely to occur if a survey is conducted using only landline telephones in a population where many individuals use only mobile phones?

Selection bias

Response bias

Non-response bias

Measurement bias

5.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

In an experiment, why is it important to have a control group that is as similar as possible to the treatment group, except for the treatment itself?

To increase the sample size

To ensure that any observed effects are due to the treatment and not other variables

To make the experiment easier to conduct

To reduce the cost of the experiment

6.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

Which of the following is a key feature of a well-designed double-blind experiment?

Only the participants are unaware of the treatment they receive

Both the participants and the researchers are unaware of which group receives the treatment

Only the researchers know which group receives the treatment

The treatment is administered to all participants

7.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

What is the primary reason for using a placebo in a clinical trial?

To deceive the participants

To ensure that the treatment effect is not due to participants' expectations

To reduce the cost of the trial

To increase the number of participants

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