OLSAT Level D study materials
OLSAT Level D study resources

OLSAT Level D common mistakes

OLSAT Level D · Understand the traps and how to avoid them.

Mistake 1

Treating an analogy as a loose association (e.g., 'dog is to cat' because both are pets) instead of pinning down the exact relationship before scanning the answer choices.

Younger test-takers match on topic overlap rather than on the specific relation (part-to-whole, function, degree, category), so a familiar-sounding pair feels correct even when its relationship differs from the stem.

What to do instead

Force a one-sentence bridge: 'A ___ is a kind of ___' or 'A ___ is used to ___' or 'A ___ is the opposite of ___'. Read the bridge with each answer pair; eliminate any pair where the sentence is false or awkward. Practice by writing the bridge for ten analogies and checking which answer preserves it exactly.

Mistake 2

Answering 'opposite' questions with the wrong polarity, or answering synonym questions with a word that is only loosely related (e.g., choosing 'happy' for 'joyful' when the answer should be 'elated').

Under time pressure, candidates grab the first word that shares a connotation and stop reading, missing the answer that matches the exact shade of meaning or the required direction (same vs. opposite).

What to do instead

Before reading choices, say aloud whether the question wants same or opposite, and circle that word in the prompt. Then rank remaining choices by strength of meaning and reject any that are merely associated. Build a small personal list of synonym/antonym pairs with graded intensity to train precision.

Mistake 3

Skimming a reading passage for a detail and choosing an answer that is true in real life or true elsewhere in the passage but does not answer the specific question asked.

Candidates rely on general knowledge and overall gist instead of locating the exact sentence; attractive distractors are written to be plausible and topically true.

What to do instead

Use a locate-and-verify routine: read the question stem first, find the sentence or paragraph that contains the answer, and underline the exact words. Then match the choice to those words, rejecting any choice not supported by that line. Practice with questions whose correct answer is a paraphrase, not a copy.

Mistake 4

Guessing the next term in a number or letter series from only the first two terms, then forcing the rest of the sequence to fit that guess.

The first difference often looks like a simple pattern (e.g., +3, +3), but the series may alternate operations, use increasing gaps, or combine two interleaved sequences. Early commitment blinds the candidate to the real rule.

What to do instead

Write the differences between consecutive terms, then the differences of those differences. Check whether odd and even positions form separate sequences. Test the candidate rule against every term, not just the first few, before choosing an answer.

Mistake 5

Solving a verbal logic or ordering puzzle by holding all the constraints in memory and jumping to a conclusion, without recording the given information.

Working memory overloads when five or six conditions interact; candidates lose track of a constraint and pick an arrangement that violates it.

What to do instead

Externalize: draw a simple grid or list of positions and write each clue as a symbol or short note. Apply the most restrictive clue first, then eliminate. After selecting an answer, re-check it against every clue before moving on.

Mistake 6

Matching a figure to an answer by overall appearance ('these look similar') rather than by the specific transformation the question requires (rotation, reflection, size change, shading).

The visual system notices global similarity quickly, and mirror images and rotations look almost identical at a glance, so superficial matching feels sufficient.

What to do instead

Name the transformation in words before looking at choices: 'turned 90 degrees clockwise', 'flipped over a vertical line', 'same shape, half the size'. Then check one distinctive feature (a notch, a dot, an asymmetric corner) to confirm orientation. Reject choices that are mirror images when a rotation is required.

Mistake 7

Ignoring count-based rules in figure matrices or series-number of sides, number of shaded regions, number of intersections, or number of elements per cell.

Candidates focus on shape identity and position and do not think to count attributes, so a matrix whose rule is 'shading increases by one each column' looks random.

What to do instead

Run a checklist on every matrix: count sides, count enclosed regions, count shaded parts, count line intersections, and note position changes. Write the counts in the margin so the arithmetic pattern becomes visible. Practice matrices where the rule is purely numerical.

Mistake 8

Assuming a paper-folding or hole-punching answer is symmetric when the fold was diagonal or off-center, producing a pattern that is mirrored incorrectly.

Candidates picture the fold as a simple half-fold and double the holes across the center, ignoring that a diagonal fold reflects holes across a diagonal line and an off-center fold places them asymmetrically.

What to do instead

Trace the fold physically with a finger or a scrap of paper. Mark each punch, then unfold one fold at a time, reflecting each hole across the fold line. Check the final pattern by counting holes (each fold doubles the count) and confirming positions relative to the fold edges.

Mistake 9

Spending too long on one hard item, then rushing the remaining questions and misreading easy ones.

Candidates treat every question as equally costly and are reluctant to leave a problem unsolved, so a single matrix or logic puzzle consumes time needed for several simpler items.

What to do instead

Adopt a time cap per question and a skip rule: if no clear path appears within the cap, mark the best guess, flag the item, and move on. Return only after finishing the section. Practice full-length timed sets to calibrate the cap and build the habit of leaving a question.

Mistake 10

Changing a first answer to a second-guessed alternative without a concrete reason, especially on verbal items where the first reading was careful.

Anxiety near the end of a section and the availability of a plausible distractor create doubt; the second choice is often made from fatigue rather than evidence.

What to do instead

Only change an answer when you can state the specific error in the original choice (misread word, violated clue, wrong transformation). Otherwise keep the first answer. During review, log every change and whether it helped, so the candidate learns which instincts to trust.