PAX2

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050 = reference average100

Engage

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Interest

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Act

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	Engage · 25%	Interest · 40%	Act · 35%
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Impressions (1k)

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3s play

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Per Person

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Opening
Engaging and clear.
The speaker introduces the challenge faced by independent voters in partisan primaries.
He explains how independent voters are split between two parties, diluting their influence.
He contrasts this with the top two system, where all candidates compete in one election.
He highlights that the top two system allows all voters to participate equally in a single election.
He concludes with a call to action, encouraging support for electoral reform.
The video ends with a black screen.

setting: Indoor, in front of a large window
on screen people: One man, wearing a baseball cap and checkered shirt
captions: No captions visible
text overlays: OpenPrimaries.org displayed at the bottom of the screen
music: No music visible
pace: Moderate
call to action: Yes, at the end of the video
visual variety: Limited, primarily focused on the man speaking

1.9×Clicks, best headline over worst

12,256Headline tests

Carries a number19.1% of winners · 17.2% of losers

Starts with “This” or “These”6.8% of winners · 5.8% of losers

Asks a question14.2% of winners · 18.2% of losers

Says “you” or “your”25.3% of winners · 25.3% of losers

Quotes someone1.2% of winners · 1.2% of losers

Shouts a word in capitals5.1% of winners · 6% of losers

Starts with “What”, “Why” or “How”6.3% of winners · 8.3% of losers

Says “watch”, “see” or “listen”8.2% of winners · 6.7% of losers

Trails off or breaks midline4.6% of winners · 4.9% of losers

First person: “I” or “my”14% of winners · 12% of losers

The same story under different headlines, shown at random, 2013–2015.

Pushed Baseline Killed

Label

r_{v} = \frac{views _{v}}{median _{u \in c (v), age_{u} \geq 7 d} views _{u}} y_{v} = 1 [r_{v} \geq 3]

Within a channel

Δ_{c} = \frac{1}{a _{c}} v \in A_{c} \sum y_{v} - \frac{1}{b _{c}} v \in B_{c} \sum y_{v} a_{c}, b_{c} \geq 3, a_{c} + b_{c} \leq 300

Weight

w_{c} = \frac{2 a _{c} b _{c}}{a _{c} + b _{c}}

Pooled, in points

Δ^= 100 \cdot \frac{\sum _{c} w _{c} Δ _{c}}{\sum _{c} w _{c}}

90% range

Δ^^{* (1)}, \dots, Δ^^{* (1000)} channels drawn with replacement [Δ^_{(50)}^{*}, Δ^_{(950)}^{*}]

Worked example

Δ_{Holler} = \frac{13}{70} - \frac{19}{208} = 0.094 w = \frac{2 \cdot 70 \cdot 208}{278} = 104.7 Δ^_{reform, CTA} = \frac{2073.7}{252.5} = + 8.2

A guess, written down before the numbers come in: will this video do better or worse than usual? When the numbers arrive, PAX2 checks the guess against them, and every check makes the next guess sharper.

Every round on file is already loaded; forecasting reopens when a new round is expected.

Video