##### Scenario Facebook Groups considering launch of sticker-reply feature ##### Question Should we launch a sticker-reply feature for Facebook Groups? What hypotheses, success metrics, guardrails and experiment design would you propose? How would you analyze the results and decide? ##### Hints Think objectives→hypotheses→AB test→metrics–guardrails→trade-offs

This question evaluates a data scientist's skills in product analytics, experiment design, metric definition, and causal inference for a group-based social feature launch.

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What difficulty level is this interview question?

This is a medium difficulty Analytics & Experimentation question, commonly asked during Onsite rounds at Meta.

What role is this question designed for?

This question is commonly asked for Data Scientist candidates at Meta during technical interviews.

Launch Sticker-Reply Feature in Facebook Groups?

Launch Decision: Sticker-Reply Feature for Facebook Groups

Context

You are evaluating whether to launch a sticker-reply feature in Facebook Groups. The feature allows members to reply to posts or comments with a sticker (a lightweight, expressive response) in group threads.

Assume: the feature is available only inside Groups; users may belong to multiple groups, and group interactions can influence others (network effects).

Tasks

State clear objectives and hypotheses for the feature.
Define success metrics (primary and secondary) and guardrails.
Propose an experiment design, including assignment unit, ramp, duration, and power.
Describe how you would analyze the results and decide whether to launch.
Call out key trade-offs and risks.

Launch Decision: Sticker-Reply Feature for Facebook Groups

Context

Assume: the feature is available only inside Groups; users may belong to multiple groups, and group interactions can influence others (network effects).

Tasks

State clear objectives and hypotheses for the feature.
Define success metrics (primary and secondary) and guardrails.
Propose an experiment design, including assignment unit, ramp, duration, and power.
Describe how you would analyze the results and decide whether to launch.
Call out key trade-offs and risks.

Launch Sticker-Reply Feature in Facebook Groups?

Quick Overview

Launch Decision: Sticker-Reply Feature for Facebook Groups

Context

Tasks

Solution

Submit Your Answer to Earn 20XP

Launch Sticker-Reply Feature in Facebook Groups?

Quick Overview

Launch Decision: Sticker-Reply Feature for Facebook Groups

Context

Tasks

Solution

Submit Your Answer to Earn 20XP