Independent Thinking
Variables can be independent or dependent. But how do you know the difference?
Audio clip: Adobe Flash Player (version 9 or above) is required to play this audio clip. Download the latest version here. You also need to have JavaScript enabled in your browser.
For more on this topic, go to DAY 1: MEASUREMENT.
Friendly Fractions
Percentages aren’t hard to understand. Actually, they’re quite friendly.
Audio clip: Adobe Flash Player (version 9 or above) is required to play this audio clip. Download the latest version here. You also need to have JavaScript enabled in your browser.
For more on this topic, go to Day 3: Dispersion
I Give 110%
You’ve heard people say that they’ll give 110%. Are they lying or just confused about percentages?
Audio clip: Adobe Flash Player (version 9 or above) is required to play this audio clip. Download the latest version here. You also need to have JavaScript enabled in your browser.
After The Party
We use Analysis Of Variance to pretest the variability of data before doing further testing. After the ANOVA, it’s time to do the follow up work. Here’s what to do.
Audio clip: Adobe Flash Player (version 9 or above) is required to play this audio clip. Download the latest version here. You also need to have JavaScript enabled in your browser.
For more information, see Day9: 1-Way ANOVA
Genesis
In the beginning, there was statistics and beer.
Audio clip: Adobe Flash Player (version 9 or above) is required to play this audio clip. Download the latest version here. You also need to have JavaScript enabled in your browser.
For more information, see Day 8: Student’s t-Test
Deal Or No Deal
There are lots of game shows on television. But what are the chances of winning?
Audio clip: Adobe Flash Player (version 9 or above) is required to play this audio clip. Download the latest version here. You also need to have JavaScript enabled in your browser.
For more information, see Day 7: Probability
Back To The Future
Time travel is going back or forward in time. With regression, you can go back or forward in terms of predicting scores.
Audio clip: Adobe Flash Player (version 9 or above) is required to play this audio clip. Download the latest version here. You also need to have JavaScript enabled in your browser.
For more information, see Day 6: Regression
Correlation Causation
Correlations can be very helpful. They lead you toward causation but don’t prove it.
Audio clip: Adobe Flash Player (version 9 or above) is required to play this audio clip. Download the latest version here. You also need to have JavaScript enabled in your browser.
For more on this topic, go to Day 5: Correlation
Pick A Mean
Sounds like a card trick: pick a card, any card. But, no, this netcast is more about beauty than cards.
Audio clip: Adobe Flash Player (version 9 or above) is required to play this audio clip. Download the latest version here. You also need to have JavaScript enabled in your browser.
For more on this topic, go to Day 4: z-Score
Cell Blocks
In prisons, the inmates are houses in cells. Collections of cells are called cell blocks. Although experimental designs don’t include prisoners, cells provide a quick way to calculate how many subjects are needed in your design.
Audio clip: Adobe Flash Player (version 9 or above) is required to play this audio clip. Download the latest version here. You also need to have JavaScript enabled in your browser.
For more information, see Day10: Advanced Procedures



