Data
Name the three types of data
(Hint: They all start with Q!)
Qualitative, quantitative discrete, quantitative continuous
At an event, raffle tickets are distributed to every participant. Then, 50 random ticket numbers are selected. What type of sample is this?
Simple random sample
Fill in the blank for A.
Relative frequency
What is a placebo?
An inactive treatment that does not have any real effect
What is ethics?
Moral standards that must be upheld in research
Eye color is an example of what type of data?
Qualitative data
For a research project, a student selects participants from their friend group chat. What type of sample is this?
Convenience sample
Fill in the blank for E.
1.0 (or 100%)
What type of treatment does a control group normally receive?
Placebo
For a study on housing prices, a researcher published participants' names and addresses. What ethical standard does this violate?
Privacy/confidentiality
The number of students per class is an example of what type of data?
Quantitative discrete data
Every 10th house is selected in a neighborhood in a research study. What type of sample is this?
Systematic sample
Fill in the blank for B.
0.08
For a study on soda brand and customer satisfaction, a researcher gives participants 5 soda brands to taste. Then, the participant must rate each soda brand on a scale from 1 - 10. What is the explanatory variable?
Soda brand
A researcher does not include 10 participant responses in a study because they do not support his original hypothesis. Why is this unethical?
Altering and misrepresenting data
Student height is an example of what type of data?
Quantitative continuous data
For a study on Guam students, all Guam students are divided by their schools. Then, 50 students from each school are selected. What type of sample is this?
Stratified sample
Fill in the blank for D.
0.52 (or 52%)
For a study on soda brand and customer satisfaction, a researcher gives participants 5 soda brands to taste. Then, the participant must rate each soda brand on a scale from 1 - 10. What is the response variable?
Taste ratings (1-10)
For a study on a certain type of medication, researchers distributed the medication without informing participants of potential side effects. What ethical standard does this violate?
Informed consent
You are conducting a study on giraffes. Name an example of quantitative discrete data that you could collect.
Example responses: number of spots, number of offspring, number of leaves eaten, lifespan (whole years)
For a study on Guam students, all Guam students are divided by their schools. Then, 5 entire schools are selected and surveyed. What type of sample is this?
Cluster sample
Fill in the blank for C.
6
How could a researcher use double-blinding in an experiment on soda brands and customer satisfaction?
Participants and researchers won't know the soda brands until after the experiment.
During elections, it is illegal to campaign within 100 feet of a voting/election site. Explain the ethical reasoning behind this law.
Campaigning may influence voter responses, which may produce biased results.