Bonus
Recent studies failed to replicate an effect found by Rosenthal and Jacobson in these places after some people were dubbed “spurters” at random. For 10 points each:
[10m] Name these places where the Pygmalion effect allegedly occurs. The number of people in these places is the subject of Maimonides’s rule, which inspired an instrumental variable study by Angrist and Lavy.
ANSWER: schools [or elementary schools; or primary schools; or secondary schools; or public schools; accept classrooms; accept “Pygmalion in the Classroom”; prompt on places of learning]
[10e] Some attempts to validate education research, including John Hattie’s Visible Learning, are this type of assessment that aggregates statistical results from many previous studies.
ANSWER: meta-analysis [or meta-analyses; prompt on meta-study or meta-studies]
[10h] For each intervention he examined, Hattie computed this measure named for an NYU psychologist. It equals the difference of the treatment and control groups’ sample means, divided by the groups’ [emphasize] pooled standard deviation.
ANSWER: Cohen’s d [prompt on d; prompt on effect size by asking “what specific way of calculating it?”; prompt on answers that indicate Jacob Cohen’s coefficient by asking “which one?”]
<Social Science>
Answerlines and category may not exactly match the version played at all sites
Conversion
| Team | Opponent | Part 1 | Part 2 | Part 3 | Total | Parts |
|---|---|---|---|---|---|---|
| Arizona State | North Carolina B | 10 | 10 | 0 | 20 | ME |
| British Columbia | Michigan | 10 | 10 | 0 | 20 | ME |
| Columbia A | Winona State | 10 | 10 | 0 | 20 | ME |
| Georgia State | Stanford | 0 | 0 | 0 | 0 | |
| Georgia Tech | Waterloo B | 0 | 0 | 0 | 0 | |
| Harvard | Vanderbilt | 0 | 0 | 0 | 0 | |
| Illinois A | Chicago B | 0 | 10 | 0 | 10 | E |
| MIT | Cornell B | 0 | 10 | 0 | 10 | E |
| Maryland | Cornell A | 10 | 10 | 0 | 20 | ME |
| NYU | Toronto C | 10 | 10 | 0 | 20 | ME |
| North Carolina A | LSE | 10 | 10 | 10 | 30 | MEH |
| Northwestern | UCF | 10 | 10 | 0 | 20 | ME |
| Ohio State | UC Berkeley B | 10 | 10 | 0 | 20 | ME |
| Rutgers | Virginia | 10 | 10 | 0 | 20 | ME |
| Toronto A | Texas | 10 | 10 | 0 | 20 | ME |
| Toronto B | Chicago A | 10 | 0 | 0 | 10 | M |
| UC Berkeley A | Columbia B | 10 | 10 | 0 | 20 | ME |
| Virginia Tech | Johns Hopkins | 0 | 0 | 0 | 0 | |
| WUSTL A | Illinois B | 10 | 10 | 0 | 20 | ME |
| Waterloo A | Ottawa | 0 | 10 | 0 | 10 | E |
| Yale | Florida | 10 | 0 | 0 | 10 | M |
Summary
| Tournament | Exact Match? | Heard | PPB | Easy % | Medium % | Hard % |
|---|---|---|---|---|---|---|
| 2025 ACF Nationals | Yes | 21 | 14.29 | 71% | 67% | 5% |