experimental design

This part of the experiment serves as a basis of comparison; the one variable being tested has been omitted (left out). 

• experimental group
• control group
• data
• variables

Tags

CCSS.RI.11-12.3

CCSS.RI.11-12.5

CCSS.RI.8.3

CCSS.RI.9-10.3

CCSS.RI.9-10.5

When one examines the entire population instead of a subgroup of the population, this is called a ____________.

• Sampling
• Census
• Bias

Tags

CCSS.HSS.IC.A.1

CCSS.7.SP.A.1

To find out what the preferred ice cream flavor is, wait outside an ice cream parlor and ask every 4th person leaving the store to name his or her favorite flavor until you get 25 responses is an example of...

• Convenience Sample
• Simple Random Sample
• Stratified Random Sample
• Systematic Sample

To study the amount of time students spend doing homework each day, use a random number generator to select 25 students from the student enrollment database to survey.

• Convenience Sample
• Simple Random Sample
• Stratified Random Sample
• Interval Sample

Tags

CCSS.HSS.IC.B.3

CCSS.HSS.IC.A.1

CCSS.HSS.MD.B.6

Dylan asked his school's basketball team to rate the school cafeteria. Is this a biased sample of the school's population?

• Yes, because it is a convenience survey
• No, the basketball team has the smartest students
• Yes, because it's voluntary
• No, he should have asked the football team

Tags

CCSS.RL.11-12.6

In order to perform an experiment using a random sample of 60 members of a gym, I first divide the list of members into men and women because I feel that the results will be different based on gender. I then randomly choose 30 men and 30 women. I assign half of the men to the treatment group and half to the control group. I repeat this procedure with the women. This is an example of a:

• randomized design
• blocking design
• stratified sample
• double blind simple random sample

Tags

CCSS.HSS.IC.B.3

An experiment is performed on plants to see how different liquids affect plant growth. Each plant in the experiment is given a different liquid; water, apple juice, or milk. Each plant has the same amount of soil. In this investigation, sunlight would be a(n) ...

• lurking variable
• explanatory variable
• response variable
• none of these

An experiment is ________ when both the researcher and the subjects of the experiment do not know who received the treatment.

• blind
• double blind
• biased
• an observational study

Which of the following is not necessary to all experiments?

• treatment
• replication
• randomization
• blocking

Tags

CCSS.HSS.IC.B.3

A numerical characteristic of the POPULATION

• Statistic
• Parameter
• Observation
• Study

Tags

CCSS.HSS.IC.A.1