U3S1&2 Exam: Testing, Testing... & Look at That?

What are anecdotes?

• Anecdotes are stories that someone tells about his/her own experience or the experience of someone he/she knows.

• Anecdotes are experiences.

• Stories that someone tells about his/her own mother based on facts.

• Anecdotes are truths about our experience based on pseudoscience.

Anecdotes are good for what things and bad for what things?

•  witness statements in a police report; reaching conclusions about groups

•  reaching conclusions about animals; witness statements in a school report

• good for reporters and studies; bad for statistical analysis software

• good for making assumptions about truths; bad for making opinions about lies

Why do many anecdotes not equal data.

• Their claims are easily debunked.

• Their claims are not able to be debunked.

• Their claims are based on facts.

• Anecdotes actually do equal data structures.

A series of observations, measurements, or facts; or information that can tell a story is?

• Data

• Anecdotes

• Opinions

• Statistics, like mode and mean

• Facts and measurements

True or False: Causation can be concluded when a randomized experiment is performed, and associations can be concluded for observational studies.

• true

• false

• maybe

• depends

A weak, moderate, strong correlation is talking about?

• How "close" the data points are to each other

• How "far" the data points are to each other

• How often the data points overlap each other

• How "closely" the independent and dependent variables are related to the treatment

How can you determine if an explanatory variable causes the response variable? (Check two)

• Check that no confounding variable is the cause of both of them.

• Do an experimental study

• Do an observational study

• Check that a confounding variable is the cause of both of them.

An inverse relationship between two variable means (check two):

• when one goes up the other goes down

• when one goes down the other goes up

• when one goes up the other goes up as well

• when one goes down the other goes down as well

A direct relationship between two variable means (check two):

• when one goes up the other goes up as well

• when one goes down the other goes down as well

• when one goes up the other goes down

• when one goes down the other goes up

Negative association between two variable means:

• as one variable goes up, the other goes down

• as one variable goes down, the other goes down

• as one variable goes up, the other goes up

• no association between variables