Show:
Research Design
Graphs
Central Tendency & Variability
Sampling & Probability
Zs & Ts
100
A small group of people chosen from a larger group
What is a sample?
100
The bell curve has this type of distribution
What is a normal distribution?
100
To find out the average income of U.S. citizens, you would use this form of central tendency
What is a mean?
100
In an experiment, the group that does not receive "treatment"
What is a control group?
100
If you want to compare how two different students in two different classes did relative to their classmates, you would use this statistic
What is a z score?
200
When your bathroom scale tells you that you weigh the same thing every single day
What is reliability?
200
Graph that should be used to illustrate the relationship between number of children and blood pressure
What is a scatterplot?
200
If you wanted to know how many males versus females own dogs, you would use this measure of central tendency
What is a mode?
200
If you asked a survey question to all of your Facebook friends, you would be using this type of sampling
What is convenience sampling?
200
Effect size is measured by this
What is Cohen's D?
300
A type of variable that predicts a particular outcome
What is an independent variable?
300
Graph that should be used to measure the relationship between gender and IQ
What is a bar graph?
300
If you wanted to find out the ages of the youngest and oldest persons in this class, this measure of variability would be best
What is the range?
300
When a researcher can use the results from one study to make inferences about the "bigger picture"
What is generalizability?
300
If you wanted to measure the effectiveness of a treatment using a before and after design, this type of test would be most appropriate
What is a paired-samples or dependent-samples t-test?
400
This type of statistic is used for prediction
What is an inferential statistic?
400
A graph that has an uneven amount of numbers between intervals falls victim to this type of lie
What is a biased scale lie?
400
A statistic is used to measure characteristics of a sample, whereas this is used to measure characteristics of a population
What is a parameter?
400
When a researcher rejects the null hypothesis when he or she should not have, they are committing this type of error
What is a Type I error?
400
If you wanted to test the effectiveness of a treatment on women versus men, you would use this type of test
What is an independent-samples t test?
500
Military ranking is this type of variable
What is an ordinal variable?
500
A bar graph and this type of chart contain pretty much the same type of information
What is a pie chart?
500
If you wanted to know, on average, how your classmates did relative to the average grade, this measure of variability would be best
What is a standard deviation?
500
If one researcher gets a certain result and years later, another researcher finds the same thing
What is replication?
500
If we wanted to compare how a sample of students at a local university did on the GRE relative to the national average, we would use this type of test
What is a single-sample t-test?