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Sign in or create an account to view this clipCrash Course: Statistics: Voluntary Response and Underrepresentation Biases
01:39
How the voluntary response and underrepresentation biases affect surveys. -
Sign in or create an account to view this clipCrash Course: Statistics: Stratified Random Sampling and Clusters
01:00
Explains stratified random and sampling and clusters. -
Sign in or create an account to view this clipCrash Course: Statistics: Snowball Sampling and Censuses
02:19
Why snowball sampling and censusing are used. -
Sign in or create an account to view this clipCrash Course: Statistics: Finding Statistical Significance with T-Tests
01:56
Explains how to use t-tests to find statistically significant differences between variables in the same study. -
Sign in or create an account to view this clipCrash Course: Statistics: Main Effects and Interaction
01:18
Explains main effects and interaction between variables. -
Sign in or create an account to view this clipCrash Course: Statistics: Covariation
01:44
Explains why covariance is important, and how to find it. -
Sign in or create an account to view this clipCrash Course: Statistics: Repeated Measures ANOVA
03:52
Explains the definition and usage of repeated measures ANOVAs. -
Sign in or create an account to view this clipRed Lights: Psychic Test
02:13
Margaret has Paul conduct his psychic test on him because he believes he's stumbled onto a breakthrough, but she is skeptical. She finds that the subject in the test read the cards from the reflection off of Paul's glasses, which gave additional information to the subject that they should not have had. -
Sign in or create an account to view this clipMythBusters: Talking to Plants
07:13
Has profanityThe MythBusters test the myth that talking to plants makes them grow better. They set up several test groups of bush peas, and all are under the same conditions except the type of sound to which they are exposed.
