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Point Estimate, Confidence Interval, Effect Size (Week 5)
Hypothesis Testing
(Week 4)
Probability, Sampling Distribution (Week 3)
Central Tendency, Variation, Z-Scores (Week 2)
Introduction, Variables, Graphs (Week 1)
100
Point estimate of mu
What is Xbar (sample mean)?
100
Rejecting the null hypothesis when it is true
What is a type I error?
100
The probability z equals exactly 0
What is 0?
100
Difference between largest and smallest value
What is the range?
100
A subset of the population
What is a sample?
200
Difference in means divided by standard deviation
What is Cohen's d?
200
Probability of making a type II error
What is beta?
200
The probability of drawing an ace or heart?
What is 16/52 = .31
200
The 50th percentile
What is the median
200
The average of all observations in the population
What is mu, population mean
300
Proportion of intervals that will contain population mean if process is repeated many times
What is the level of confidence?
300
Another name for a directional alternative hypothesis test
What is a one-tailed test?
300
Theorem that allows use of the normal distribution to find the probability of a mean for any shaped distribution
What is the central limit theorem?
300
Square of the standard deviation
What is the variance?
300
The level of measurement where observations can be ranked
What is an ordinal variable?
400
Range of Cohen's d
What is -infinity to +infinity?
400
The critical value for a left tailed test using an alpha level of .05
What is -1.65?
400
.997
What is the probability z is between -3 and +3?
400
Converts to a z-score of 0
What is the mean?
400
When the distribution is more peaked than a normal distribution
What is an leptokurtic?
500
Increasing this narrows the confidence interval
What is the sample size?
500
The probability of rejecting the null hypothesis when it is really false
What is power?
500
Probability two events occur simultaneously (A & B)
What is the joint probability?
500
Measure of variation reported when the median is used as the measure of central tendency
What is the interquartile range?
500
Study design where independent variable is not manipulated by researcher
What is quasi-experimental?