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A study is an ordered list of blocks — each is one screen or measure a participant sees. Add, reorder (drag), configure, and remove blocks in the Builder. “Records an answer?” tells you whether a block captures participant data (✓) or is stimulus/flow only (—).
Blocks that record an answer can be used as condition sources and appear in the exported dataset. Stimulus-only blocks (text, image, social post…) show content but collect nothing.

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Core questions & scales

BlockRecords?What it does
Multiple choice✓Single- or multi-select with your own options.
Likert (7-point)✓7-point agreement scale (prompt + anchor labels); a common manipulation check.
Free text✓Open-ended response — short line or long paragraph.
Slider✓Numeric slider over a min/max range.
Visual analog scale✓Continuous slider between two labelled anchors (VAS).
Dropdown✓Single-select dropdown — good for long lists.
Yes / No✓Binary choice with configurable labels (Yes/No, True/False…).
Star rating✓1-to-N star rating.
Net Promoter Score✓0–10 likelihood-to-recommend scale.
Ranking✓Order a set of items by preference/priority.
MaxDiff (best–worst)✓From a set, pick the best and the worst.
Matrix / grid✓Rows of statements each rated on a shared scale.
Side by side✓Several sub-questions in one condensed table; columns can differ.
Semantic differential✓Bipolar adjective pairs, each rated 1–N.
Picture choice✓Image-based options; single or multi-select.

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Judgment & misinformation

BlockRecords?What it does
Accuracy + confidence✓A categorical judgment (e.g. real vs fake) paired with a confidence rating — the metacognition measure central to misinformation work.
Share intention✓Would the participant share this — and why? Behavioral-intention measure, with optional/required reason.
Constant sum✓Allocate a fixed budget (points/%) across options that must hit a target.
Drill down✓Cascading dependent dropdowns (country → region → city); records the path.

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Behavioral & timing

BlockRecords?What it does
Reaction time✓Response latency (ms) after a stimulus appears following a random delay.
Timed exposure✓Show a stimulus for exactly N ms, then hide it — the limited-exposure paradigm. Records actual display time.
Forced wait✓Disable Continue for N seconds; records how long they actually waited.
Attention check✓Instructed-response check (known correct option) for data-quality screening.

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Image interaction

BlockRecords?What it does
Heat map✓Participants click anywhere on an image to mark points of interest; records normalized coordinates.
Hot spot✓Predefined clickable regions on an image; participants select which apply.
Graphic slider✓Drag a marker along an image to give a position-based rating.

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Stimuli (no answer)

BlockRecords?What it does
Text—Instructional or narrative text (markdown).
Image—Embedded image stimulus, with alt text + optional caption.
Video—Embedded video (YouTube/Vimeo/MP4), optional caption.
Link preview—A clickable link card shown as stimulus (to ask for a URL, use “Website / URL”).
Social post— / ✓A simulated social-media post (headline, body, source, image) used as a misinformation stimulus; an answer-collecting variant carries veracity ground-truth + topic tags. The Like / Share / Comment labels are editable.
Audio stimulus (AI voice)—A spoken stimulus generated from your script by Hume Octave TTS. Uses your workspace’s Hume key.

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Media capture

BlockRecords?What it does
Audio recording✓Participants record a spoken answer (mic; time-limited).
Video recording✓Short video response from the camera (with consent); stored privately.
File upload✓Upload a file (PDF/doc/sheet/image/zip); stored privately, served as a download.
Signature✓A drawn signature (e.g. a consent record); stored privately.

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Forms & contact

BlockRecords?What it does
Number✓Numeric field with optional min/max + unit.
Date✓Date field (ISO 8601).
Email✓Email field (format-validated).
Phone number✓Phone field (light E.164 validation).
Website / URL✓URL field (http/https, validated).
Address✓Structured postal address.
Contact info✓Name + email (+ optional phone) on one screen.
Custom field group✓One card with fields you define (add/rename/type each); records one combined answer.

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AI

BlockRecords?What it does
AI conversation✓A live chat with Claude in a role + context you set; the transcript is the answer. Uses your workspace’s Anthropic key.
Text emotion probe✓Participants type; Claude scores the emotion in their words (exploratory).
AI blocks add a non-determinism disclosure to your preregistration automatically, and run on your own provider key.

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Flow & quality

BlockRecords?What it does
Embedded data—Capture named URL params (e.g. Prolific PID, condition) into the response for panel reconciliation. Default-deny; not shown to participants.
End redirect—Send completers back to a recruitment platform with a completion code (a button on the completion page, never an auto-redirect).

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Configuring & reusing

Select any block to open its Configure panel (options, validation, wording — prefilled with sensible defaults). Reuse images/audio/video across studies from Library → Materials. See also conditions, variants, and themes.