Language tests measure how people recognize words and use what they mean.
10 tests
Measures how well people find the names of familiar things. Pictures of objects and animals appear one at a time and participants type each name. The pictures are emoji from one freely licensed set, and the names span three bands of word frequency.
6 to 10 minutes · Desktop, tablet or phone
Measures how quickly people recognize written words. A string of letters appears and participants decide whether it is an English word, pressing F or J. Half the strings are common or rare words and half are pronounceable nonwords.
3 to 5 minutes · Desktop or laptop
Measures sensitivity to grammatical errors in English. Participants read 60 sentences one at a time and press one key when a sentence is correct and another when it has an error. Half the sentences have one error in agreement, tense, plural, word order, verb structure or pronoun case.
4 to 6 minutes · Desktop or laptop
Measures where English sentences become hard to read. Participants read 60 sentences one word at a time, pressing the space bar for each word, and answer yes or no questions after some of them. Reading times on garden-path sentences, against the same sentences made unambiguous, show the cost of revising a first reading.
6 to 9 minutes · Desktop or laptop
Measures English vocabulary knowledge. Each item shows a word and five others, and participants choose the one that means the same. The 40 items run from common to rare words in four frequency bands.
5 to 8 minutes · Desktop, tablet or phone
Measures reading comprehension. Participants read 3 short English passages with every seventh word taken out and fill in each missing word.
8 to 12 minutes · Desktop, tablet or phone
Measures how a word's meaning speeds recognition of a related word. A prime word flashes for 150 ms, then participants decide whether the next string of letters is an English word. Word targets follow a related or an unrelated prime.
3 to 5 minutes · Desktop or laptop
Measures how a word too brief to see speeds recognition of the same word. A row of hashes, a lower-case prime for about 50 ms, then an upper-case target: participants decide whether the target is an English word. A short check after the task shows how visible the primes were.
5 to 7 minutes · Desktop or laptop
Measures learning of the rules behind letter strings without being told them. Participants copy 16 strings of letters from memory, then learn that the strings followed rules and judge 48 new strings as following them or not. The main score is the percent of new strings judged correctly.
8 to 11 minutes · Desktop or laptop
Measures how quickly people check a sentence against a picture. Participants read a short sentence about a star and a plus sign, such as "The star is not above the plus sign", then press F or J to say whether it is true of a picture of one above the other. The sentences vary in negation and in above or below, and are shown in the participant's language.
8 to 11 minutes · Desktop or laptop
Papers that name each test, counted for our test census. Tests counted together share a bar. Counts and grades describe the published research on each task, not ConductCognition's version of it.
Source: ConductCognition test census 0.14.0, counted 31 October 2026 from OpenAlex and ClinicalTrials.gov.
| Test | Papers, 2021 to 2025 | Compared with 2016 to 2020 | Use grade | Evidence grade |
|---|---|---|---|---|
| Picture Naming Test | 1,759 | Down 1% | A | A |
| Lexical Decision Task | 1,412 | Down 10% | A | B |
| Grammaticality Judgment Task | 1,140 | Up 4% | A | C |
| Self-Paced Reading Task | 740 | Up 46% | B | C |
| Vocabulary Test | 550 | Down 22% | B | A |
| Cloze Test | 415 | Up 7% | B | C |
| Semantic Priming Task | 326 | Down 26% | B | C |
| Masked Priming Task | 270 | Down 18% | C | C |
| Artificial Grammar Learning | 165 | Down 28% | C | D |
| Sentence Verification Task | 53 | Down 18% | D | C |
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