Statistics and Statistical Programming (Fall 2020)/w07 session plan: Difference between revisions
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== 10/29 Agenda == | |||
* OS Ch 7 exercises | |||
** What to do with/about violations of assumptions? (e.g., 7.12b) | |||
** Causality (again) | |||
*** 7.12c: Did the lead do it? | |||
*** Trick-or-treating experiment from Aronow et al. (Tuesday): did the treatment do it? | |||
* T-tests "in the wild" | |||
** What should/can you do with this test? | |||
** What concerns should you have / take into account? | |||
* Big picture considerations revisited: | |||
** What to do with any test? | |||
** How do I know whether I'm using "the right" test when there are seemingly no rules and/or whatever rules exist seem to be breakable (sometimes)? | |||
* Self-assessment exercise demo/introduction | |||
== 10/27 Agenda == | == 10/27 Agenda == | ||
* Pset 5 PCs | * Pset 5 PCs | ||
** PC4: interpreting the results of this chi-squared test | |||
** plotting error bars, and walking through some of the techniques Aaron used in the PC5 solution | ** plotting error bars, and walking through some of the techniques Aaron used in the PC5 solution | ||
** review: calculating standard errors. | ** review: calculating standard errors. |
Latest revision as of 17:56, 29 October 2020
10/29 Agenda[edit]
- OS Ch 7 exercises
- What to do with/about violations of assumptions? (e.g., 7.12b)
- Causality (again)
- 7.12c: Did the lead do it?
- Trick-or-treating experiment from Aronow et al. (Tuesday): did the treatment do it?
- T-tests "in the wild"
- What should/can you do with this test?
- What concerns should you have / take into account?
- Big picture considerations revisited:
- What to do with any test?
- How do I know whether I'm using "the right" test when there are seemingly no rules and/or whatever rules exist seem to be breakable (sometimes)?
- Self-assessment exercise demo/introduction
10/27 Agenda[edit]
- Pset 5 PCs
- PC4: interpreting the results of this chi-squared test
- plotting error bars, and walking through some of the techniques Aaron used in the PC5 solution
- review: calculating standard errors.
- What if don't have raw data (EQ2)
- Should I use special formulas from a textbook (such as the formula for SE of a proportion) or the default formula (sd / sqrt(n) )?
- Other questions?
- Pset 5 EQs
- Base rate fallacy
- Review the definition
- How concerned should we be?
- P-values
- the "strength" of relationships
- significance of differences rather than differences in significance
- Chi-squared in particular
- Goodness of fit? Test if the distribution fits the data?
- Base rate fallacy
- Meta-questions (many via Gus's comments)
- The practical the purpose of a statistical test (is to find the p-value)?
- What should you ask about any test?
- What do we know about causality from any of these tests?
- Other questions
- Upcoming
- Project plans
- Stats material this week
- Assessment coming. Discuss some details, goals of the activity, etc.
- No problem set is due on Nov. 3 (election day!)