Quick Answer
An appositive is a noun or noun phrase that renames another noun right beside it. On the Digital SAT, these frequently appear in the Standard English Conventions questions of the Reading and Writing section. Mastery of appositives is essential, as they typically appear in approximately 10-15% of punctuation-based questions.
An appositive is a noun or phrase that provides additional information about a preceding noun, often separated by commas, dashes, or colons. Grammatically, non-essential appositives are set off by punctuation, while essential (restrictive) ones are not.
Question: The celebrated physicist [Albert Einstein/ , Albert Einstein, ] who developed the theory of relativity, was born in Germany. Solution: In the phrase 'The celebrated physicist Albert Einstein,' the name is essential to identify which physicist is being discussed. Therefore, no commas should surround the name. Correct: 'The celebrated physicist Albert Einstein...'
Over-punctuating essential appositives: Students often place commas around a name even when it is necessary to identify the specific noun being discussed.
Asymmetrical punctuation: Using a comma to start an appositive but an em-dash to end it, which is a common distractor on the Digital SAT.
Misidentifying titles as appositives: Treating a professional title like 'Architect' as an appositive requiring commas when it is functioning as a descriptor for the following name.
Students targeting 750+ should know that the SAT often uses appositives at the very beginning of a sentence to modify the subject that follows. In these cases, the phrase must be followed by a comma, and the noun immediately after the comma must be the person or thing the appositive describes to avoid a dangling modifier.
Colon
The colon is a punctuation mark used on the Digital SAT primarily to introduce lists, explanations, or emphasis. In the Reading and Writing section, 'Boundaries' questions frequently test this mark. A colon must follow a complete independent clause, a specific rule that distinguishes it from other punctuation marks in standard English conventions.
Comma Splice
A comma splice occurs when two independent clauses are joined by only a comma without a conjunction. On the Digital SAT, this error is frequently tested within the 'Boundaries' question type in the Reading and Writing section. Students must identify these mistakes to ensure sentences are punctuated according to Standard English Conventions.
Em Dash
The em dash is a versatile punctuation mark on the Digital SAT used primarily to set off nonessential information or provide emphasis. Frequently appearing in the Reading and Writing section under Standard English Conventions, it functions similarly to commas or parentheses when used in pairs to isolate parenthetical phrases.
Nonrestrictive Clause
A nonrestrictive clause is a descriptive element in the Digital SAT Reading and Writing section that provides non-essential information about a noun. These clauses, frequently tested in Standard English Conventions questions, appear in approximately 15-20% of grammar-based items and must be set off by symmetrical punctuation such as commas, dashes, or parentheses.
Restrictive Clause
A restrictive clause is an essential grammatical unit that limits or identifies the noun it modifies. On the Digital SAT, these clauses appear frequently within the Standard English Conventions questions. Unlike nonrestrictive clauses, they are never set off by commas, a distinction typically tested in approximately 2 to 4 questions per exam.
An appositive on the Digital SAT is a noun phrase that renames or identifies an adjacent noun. It appears in the Reading and Writing section, where students must decide if the phrase requires commas. Non-essential appositives, which add extra info, are typically set off by punctuation, while essential ones that identify a specific noun are not.
To identify an appositive, look for a noun phrase that follows another noun and provides more detail about it. A common test is to temporarily remove the phrase from the sentence; if the sentence still makes sense and identifies the same specific subject, the phrase is a non-essential appositive and needs commas.
While both provide extra information, an appositive is a noun or noun phrase, whereas a non-restrictive clause usually starts with a relative pronoun like 'which' or 'who' and contains a verb. On the SAT, both require similar punctuation rules—specifically, they must be set off by commas or dashes if they are non-essential.
While the exact number varies by test form, appositives typically appear in approximately 2 to 4 questions within the Standard English Conventions portion of the Digital SAT. These questions often focus on punctuation consistency and distinguishing between essential and non-essential information to ensure correct comma or dash placement.
