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CogAT (Grades K-2) • Verbal Battery

Distinguish between plausible and best-fit completions

Learn how to pick the answer that fits best, not just one that could work.

Explore the lesson 9 min read
Inside this lesson 10 sections 5 questions 5 figures

SECTION 1

Why Do We Need the Best Answer?

People have always loved puzzles. For a long time, teachers have wanted to know how kids think. They made tests that ask you to pick the best answer from a list. This helps teachers see how well you can think and solve problems.

Long Ago • Riddles and Puzzles

People told riddles to each other. You had to think carefully to find the right answer, not just any answer!

1900s • Schools Start Testing

Schools began giving tests. They wanted to see how kids think. The tests had many answer choices.

1954 • The CogAT Is Created

A special test called the CogAT was made. It asks kids to pick the best answer from choices that might all seem okay.

Today • You Take the CogAT!

Now you get to show how you think! You will learn to find the very best answer, even when more than one answer seems right.

Here is the big question: When more than one answer could work, how do you pick the one that works best? That is what this lesson is all about!

SECTION 2

What Are Plausible and Best-Fit Answers?

When you answer a question on the CogAT, you see a few answer choices. Some answers might kind of make sense. We call those plausible answers. That means they could work but are not perfect. The best-fit answer is the one that works the very best. It fits perfectly, like a puzzle piece!

1

Plausible Means 'Could Work'

A plausible answer makes a little sense. It is not silly, but it is not the perfect fit either.
2

Best-Fit Means 'Works Best'

The best-fit answer is the one that fits the question perfectly. It is the strongest, most correct choice.
3

Tricky Choices on Purpose

Tests put in plausible answers on purpose. They want to see if you can find the very best one!
4

Think Before You Pick

Always read or look at every choice. Do not pick the first one that seems okay. Look for the one that is just right.
✦

KEY TAKEAWAY

Think of it like picking shoes. Many shoes fit your feet, but your favorite pair fits the best and feels just right. On a test, you want to find the answer that is your favorite-pair answer — the one that fits perfectly!

SECTION 3

See It: Plausible vs. Best-Fit

Which Word Completes the Sentence?"The puppy wagged its _____ when it was happy."PLAUSIBLEA) nose(Puppies have noses, but...)NOT PLAUSIBLEB) book(Puppies don't have books!)PLAUSIBLEC) paw(Puppies have paws, but...)✓BEST FIT ★D) tail(Puppies wag their tails!)WrongPlausibleCloseBest Fit!How well does the answer fit? →
This picture shows four answer choices. "Nose" and "paw" are plausible — they make some sense. "Book" does not fit at all. "Tail" is the best fit because puppies wag their tails when happy!

Look at the picture above. The sentence says the puppy wagged something when it was happy. A puppy does have a nose and a paw, so those words are plausible. But puppies do not wag their noses or paws! They wag their tails. That is why "tail" is the best-fit answer.

SECTION 4

How to Find the Best-Fit Answer

A Simple Way to Think

You do not need hard math for this. You need a plan! Here is a simple plan to find the best-fit answer every time.

1

Step 1: Read or Listen

Read the sentence or look at the picture very carefully. What is the question asking?
2

Step 2: Try Each Answer

Put each answer into the sentence. Say it out loud in your head. Does it sound right?
3

Step 3: Cross Out Silly Ones

Take away answers that do not make sense at all. These are easy to spot!
4

Step 4: Compare What Is Left

Look at the answers that are left. Which one fits the MOST? That one is your best-fit answer!
💡

Remember!

On the CogAT, there is always one best answer. Even if two choices seem okay, one of them fits better. Your job is to find that one!

SECTION 5

Types of Completion Questions

On the CogAT Verbal Battery, you may see different kinds of questions. Some ask you to finish a sentence. Some ask you to pick a word that goes with other words. Some ask you to complete a word relationship. Let's look at the main types.

Three Types of Questions You Might See1SentenceCompletion"The cat sat onthe _____."Pick a word!2WordCategories"Apple, banana,_____."Find the group!3VerbalAnalogies"Cat is to kittenas dog is to_____."Find the pair!The Trick in ALL Three Types:Some answers look okay. But only ONE answer is the BEST.Always look for the best fit! ★⚠ Plausible Trap"Could work" is NOT the same as "works best"✓ Best-Fit Win"Works best" = the answer that matches perfectly
This diagram shows three kinds of questions you might see: sentence completion, word categories, and verbal analogies. In all three, you must find the best-fit answer!
Question TypeWhat You DoWatch Out For
Sentence CompletionFill in the missing word in a sentence.Words that sort of make sense but are not the best pick.
Word CategoriesFind the word that belongs in a group.Words that are related but are not part of the same group.
Verbal AnalogiesComplete a word relationship (e.g., cat is to kitten as dog is to ___).Words that are related to one pair but don't match the relationship exactly.

Types of CogAT Verbal Battery completion questions

SECTION 6

Let's Solve One Together!

Let's try a question step by step. Read the sentence and the answer choices below.

ℹ

The Question

"Birds fly in the _____." A) water B) sky C) ground D) air

Finding the Best-Fit Answer

  1. 1

    Step 1 — Read the Sentence

    The sentence says "Birds fly in the _____." We need to find where birds fly.
  2. 2

    Step 2 — Try Each Answer

    Let's try each one. "Birds fly in the water." Hmm, some birds dive in water, but they swim — they don't fly there. "Birds fly in the sky." That sounds right! "Birds fly in the ground." No, you can't fly in the ground. "Birds fly in the air." That sounds right too!
  3. 3

    Step 3 — Cross Out Silly Ones

    "Ground" is silly — cross it out! "Water" is not quite right — cross it out too!
    We are left with sky and air.
  4. 4

    Step 4 — Compare and Pick the Best

    Both "sky" and "air" are plausible. But when we say birds fly, we usually say they fly in the sky. We breathe air, and air is everywhere — even inside a house. "Sky" fits the sentence about birds flying the very best!
    Best-fit answer: B) sky ✓
🌟

WHAT WE LEARNED

Both "sky" and "air" could work. They were both plausible. But "sky" was the best fit because it is the word people use most when talking about where birds fly. Always pick the answer that fits the most perfectly!

SECTION 7

Helpful Tips and Common Traps

Now you know the steps. Let's talk about some tips that help and some traps to watch out for!

Helpful Tips ✓Common Traps ✗
Read ALL the choices before you pick one.Picking the first answer that sounds okay.
Say the sentence with each word in your head.Rushing without trying each answer.
Ask yourself: Does this word make the MOST sense?Picking a word just because it is about the same topic.
Cross out answers that are clearly wrong first.Getting stuck between two choices and guessing fast.

Tips vs. Traps for finding the best-fit answer

✦

KEY TAKEAWAY

Think of it like putting on a hat. You might have three hats that fit on your head. But one hat is your favorite — it feels the most comfy and looks just right. The best-fit answer is like that favorite hat. It just fits perfectly!

SECTION 8

How This Skill Grows with You

The skill you are learning now will help you for a long time! As you get older, the questions get harder. But you will use the same thinking steps.

Right Now (K-2)When You're Bigger (3-5)
You pick words to finish simple sentences.You will pick words to finish harder sentences with bigger words.
You find words that go together in easy groups (like fruits).You will find words that go together in trickier groups (like things that are hot).
You look at 3 or 4 choices.You might look at 5 choices that all seem close!
You use everyday words you know.You will use new vocabulary words you learn in school.

How completion questions change as you grow

The great news is that every time you practice finding the best-fit answer now, you are getting ready for harder questions later. You are building your thinking muscles!

SECTION 9

Practice Problems

Now it's your turn! Try these five problems. Remember: look at every answer choice and find the one that fits the very best.

Question 1: CONCEPTUAL

"You sleep in a _____." Choices: A) chair B) bed C) table D) car. Which is the best-fit answer?
Show answer
The best-fit answer is B) bed. A chair is plausible because you could fall asleep in a chair, and you could nap in a car. But the place where people sleep every night is a bed. "Bed" fits the most perfectly.

Question 2: BASIC CALCULATION

Which word goes with this group? Dog, Cat, Fish, _____. Choices: A) Tree B) Hamster C) Ball D) Milk. Pick the best-fit answer.
Show answer
The best-fit answer is B) Hamster. The group is pets (animals people keep at home). A tree is not an animal. A ball is a toy, not a pet. Milk is something cats drink, so it is related but not a pet. A hamster is a pet, just like a dog, cat, and fish!

Question 3: INTERMEDIATE

"The sun is _____ during the day." Choices: A) dark B) cold C) bright D) loud. Two answers might seem plausible. Which one is the best fit?
Show answer
The best-fit answer is C) bright. Dark is the opposite of what the sun does, so cross that out. Loud does not describe the sun. Cold is tricky because some days feel cold outside, but the sun itself is always very hot and bright. "Bright" describes the sun perfectly during the day.

Question 4: APPLIED

"The farmer picked _____ from the tree." Choices: A) eggs B) apples C) carrots D) flowers. Think carefully! More than one answer is plausible.
Show answer
The best-fit answer is B) apples. Flowers can grow on trees, so that is plausible. But we usually say we "pick flowers" from a garden, not a tree. Eggs come from chickens, not trees. Carrots grow under the ground. Apples grow on trees and farmers pick them — that is the perfect best-fit answer!

Question 5: CRITICAL THINKING

Red, Blue, Green are all _____. Choices: A) big B) colors C) paints D) pretty. Two answers are very plausible. Which one is the best fit and why?
Show answer
The best-fit answer is B) colors. This is tricky because "paints" is very plausible — paints do come in red, blue, and green. But red, blue, and green are always colors, even when they are not paints. They could be crayons, markers, or clothing. "Colors" is the most accurate group name and fits the best. "Pretty" and "big" describe things but don't name the group.

SUMMARY

What You Learned Today

Summary

Today you learned the difference between plausible answers and the best-fit answer. A plausible answer is one that could work but is not perfect. The best-fit answer is the one that fits the most perfectly.

Remember the four steps: read carefully, try each answer, cross out silly ones, and compare what is left to find the very best choice. You are a best-fit detective now! Great job!

Varsity Tutors • CogAT (Grades K-2) • Distinguish between plausible and best-fit completions