All four parts, one sitting, one band

Single-part practice is faster to fit into a day, but only the full test tells you the thing that actually matters: your overall band, the way it'll be calculated on exam day. Fatigue across four parts is real — a strong Part 1.1 answer sat fresh isn't the same as one sat after twelve minutes of continuous speaking.

Most people use single-part drills (see single part practice) to fix a specific weak point, then confirm the fix with a full test.

Each part gets its own holistic band, and the four combine into one 0–75 score mapped to a CEFR level — see the full breakdown on the scoring guide.