PAAET Nursing and Health Sciences Aptitude Test common mistakes
PAAET Nursing and Health Sciences Aptitude Test · Understand the traps and how to avoid them.
On vessel and nerve questions, treats 'afferent' as meaning 'away from' the organ and therefore selects the exit vessel (e.g. the efferent arteriole) when asked which one delivers blood to the glomerulus, or names the dorsal-root side as motor.
The words look alike and the 'a-for-away' guess feels intuitive, so the candidate never actually verifies the direction of travel under exam time pressure.
What to do instead
Memorise one fixed pair and apply it to every item: Afferent = Arrive (toward the structure), Efferent = Exit (away). Before answering, write an arrow on the scratch paper showing the direction the stem asks about, then check the option against the arrow.
Writes '3:1' as the answer to any monohybrid cross without first writing the parents' genotypes, and gives a genotype ratio when the stem asked for a phenotype ratio (or the reverse).
The 3:1 figure is over-learned from textbook examples, so it is recalled as a reflex rather than derived; genotype and phenotype ratios are also both 'ratios' and are not distinguished while reading.
What to do instead
Force the full procedure on every genetics item: write parental genotypes, fill the Punnett square, label each cell with genotype and phenotype, then underline in the stem whether it asks genotype or phenotype, ratio or probability. Only then read off the answer.
Computes moles correctly, then divides by the volume in millilitres instead of litres when finding molarity, producing an answer a thousand times too large.
The number 250 looks like a usable figure and the mL-to-L step feels like a triviality, so it is skipped; the resulting answer still 'looks like' a concentration.
What to do instead
Write the calculation as a single chain with units attached and cancel them: mol ÷ (mL × 1 L/1000 mL) = mol/L. If the units left at the end are not mol/L, the setup is wrong. Sanity-check the magnitude: a molarity above about 20 mol/L is almost certainly a conversion error.
Ranks acidity and pH in the same direction, so a pH 2 solution is called 'less acidic' than a pH 5 solution, or a strong acid is assumed to have the higher pH.
Both quantities are described as 'high' or 'low' in everyday speech, and the inverse, logarithmic nature of pH is memorised as a formula rather than understood as a direction.
What to do instead
Fix one anchor sentence: lower pH = more H+ = more acidic. Convert every option to [H+] = 10^-pH before comparing, so the ranking is done on a quantity that increases with acidity.
Splits a total amount in a given ratio by using the ratio terms as the actual shares, or by adding the ratio terms to the total, e.g. sharing 40 in the ratio 3:5 as 3 and 5, or as 43 and 45.
The numbers in the ratio are concrete-looking quantities, so they get treated as amounts; the idea of 'parts' is understood in class but not performed under time pressure.
What to do instead
Always run the same three lines: total parts = 3 + 5 = 8; one part = 40 ÷ 8 = 5; shares = 15 and 25. Finish by checking the shares add back to the original total.
Averages two group percentages directly to combine them (e.g. 80% of 10 students and 50% of 100 students reported as 65%) and reports the median of an even-sized data set as one of the two middle values rather than their mean.
Percentages feel like plain numbers that can be averaged, and the median rule for even counts is a small procedural detail that is dropped once sorting is done.
What to do instead
Before averaging, ask 'are the groups the same size?' If not, rebuild the totals: (sum of successes) ÷ (total n). For the median, always sort, mark the middle, and if two values remain in the middle, average them explicitly.
Substitutes grams into F = ma, or centimetres into kinematics or energy equations, and reports the result in newtons or joules without converting.
The numbers in the stem are taken at face value and gram/centimetre values give arithmetically tidy answers, so nothing signals that the conversion was missing.
What to do instead
Convert every given quantity to SI (kg, m, s) as the first written step, before any substitution, and write the final unit next to the answer. If the working unit is not kg·m/s², the answer is not in newtons.
Adds resistances directly for resistors in parallel, or assumes the current is the same through every branch of a parallel circuit, effectively applying series rules to a parallel diagram.
Series formulas are practised first and more often, and circuit diagrams do not visually announce which type they are, so the default formula is applied.
What to do instead
Before calculating, label the circuit as series or parallel and write down the invariant: series has one current, parallel has one voltage. Then multiply out parallel branches reciprocally (1/R = Σ1/Rᵢ) and check that the equivalent resistance is smaller than the smallest branch, as it must be.
Picks the answer option that repeats the passage's exact wording even when it does not answer the question stem, and answers inference items from personal knowledge rather than from what the text states.
Exact word overlap feels like evidence of correctness, and general-knowledge items feel easy because the topic is familiar, so the text is skimmed rather than searched.
What to do instead
Read the stem first and predict the answer in your own words before looking at the options, then match to the prediction. For each option, point to the line that supports it; if you cannot point to a line, eliminate it. For inference items, ask 'can this be concluded from these words only?'
Reads a chart's axis gridline spacing as one unit regardless of the label, and computes the percentage change between two values as their plain difference (e.g. 60 to 75 reported as '15% increase').
The visual shape of the bars is processed before the axis labels, and 'change' in everyday language is heard as 'difference', so the division by the original value is skipped.
What to do instead
Before reading any value, write down the axis label and the spacing between gridlines. For change, write the formula (new − old) ÷ old × 100 next to the data and substitute, then check that the sign and rough size make sense against the visual change.