Fahkir is conducting a study about how sleep deprivation affects errors on a cognitive task. Participants are randomly assigned to get 3, 6, or 9 hours of sleep in a sleep lab; then they complete the reaction time task. The data are as follows: Highly Sleep Deprived Mildly Sleep Deprived Not Sleep Deprived 50 25
Contingency Table
A contingency table can be defined as the visual representation of the relationship between two or more categorical variables that can be evaluated and registered. It is a categorical version of the scatterplot, which is used to investigate the linear relationship between two variables. A contingency table is indeed a type of frequency distribution table that displays two variables at the same time.
Binomial Distribution
Binomial is an algebraic expression of the sum or the difference of two terms. Before knowing about binomial distribution, we must know about the binomial theorem.
Fahkir is conducting a study about how sleep deprivation affects errors on a cognitive task. Participants are randomly assigned to get 3, 6, or 9 hours of sleep in a sleep lab; then they complete the reaction time task. The data are as follows:
|
Highly Sleep Deprived |
Mildly Sleep Deprived |
Not Sleep Deprived |
| 50 | 25 | 12 |
| 60 | 50 | 17 |
| 70 | 45 | 22 |
Fill in the table below:
|
Source of Variation |
SS |
df |
MS |
F |
|
Between groups |
|
|
|
|
|
Within groups |
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|
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Total |
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|
|
Finally,
What is the critical value?
What decision should you make? choose from the options below
- Reject the null - our results are not significant
- Reject the null - our results are significant
- Fail to reject the null - our results are not significant
- Fail to reject the null - our results are significant
What is the effect size (eta-squared)? Remember, round to the second decimal)
What is Tukey's HSD (alpha = .05)?
Using Tukey's HSD, which conditions are significantly different from each other? (choose from the options below)
- M1 and M2
- M1 and M3
- M2 and M3
- None of the above
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