HPAT - Health Professions Admissions Critical Thinking and Arguments Questions and Answers — Questions and Answers
Question 1: A hospital administrator states: 'We recently installed hand sanitiser dispensers at the entrance of every ward. Over the following three months, we observed a 20% reduction in the rate of hospital-acquired infections compared to the three months prior. Therefore, the new dispensers are the cause of this improved patient safety.' Which of the following, if true, would most weaken this argument?
- The hospital also implemented a mandatory staff hand-washing training program at the same time the dispensers were installed. (Correct answer)
- The cost of the hand sanitiser was higher than the cost of the infections it was intended to prevent.
- A patient satisfaction survey conducted during the same period showed a slight increase in overall patient happiness.
- The previous three-month period had an unusually high rate of infections due to a rare viral outbreak.
Correct answer: The hospital also implemented a mandatory staff hand-washing training program at the same time the dispensers were installed.
The correct answer weakens the argument by introducing a confounding variable. If a mandatory hand-washing program was started at the same time, it is impossible to attribute the reduction in infections solely to the new dispensers. This alternative explanation challenges the administrator's direct causal link.
Question 2: A medical researcher is presenting their findings: 'Our study followed 500 patients with a history of migraines. We found that every patient who adopted a gluten-free diet reported a decrease in migraine frequency. Therefore, we conclude that a gluten-free diet is an effective treatment for reducing migraine frequency in all patients.' Which type of reasoning is primarily used to reach this conclusion?
- Analogical Reasoning
- Deductive Reasoning
- Inductive Reasoning (Correct answer)
- Abductive Reasoning
Correct answer: Inductive Reasoning
This is an example of inductive reasoning. The researcher is moving from specific observations (500 patients in the study) to a broad generalization (all patients). Inductive reasoning creates a probable conclusion based on evidence, but it does not guarantee the conclusion's truth in all cases, unlike deductive reasoning.
Question 3: A senior doctor advises a junior colleague: 'You should prescribe the new medication, 'Cardiocure,' for Mr. Smith's heart condition. It's the most recently approved drug on the market, so it's bound to be the most effective option available.' The senior doctor's argument depends on which of the following assumptions?
- Mr. Smith has previously had adverse reactions to older medications.
- The newest medication available is always the most effective treatment. (Correct answer)
- The junior colleague is not familiar with the latest cardiovascular drugs.
- Cardiocure is significantly more expensive than other available options.
Correct answer: The newest medication available is always the most effective treatment.
The argument leaps from the premise ('Cardiocure' is the newest drug) to the conclusion (it is the most effective). This leap only works if one assumes that newness is a direct indicator of effectiveness. This unstated belief is the core assumption of the argument.
Question 4: In a debate about public health policy, one speaker argues, 'We must increase funding for preventative health screenings.' Their opponent replies, 'So you're saying we should bankrupt our healthcare system by throwing money at endless tests while ignoring patients who are currently sick and in need of immediate treatment? That's irresponsible.' The opponent's response is an example of which logical fallacy?
- Appeal to Authority
- Ad Hominem
- False Dichotomy
- Straw Man (Correct answer)
Correct answer: Straw Man
The opponent is using a 'Straw Man' fallacy. They are not addressing the actual argument (increasing funding for preventative screenings). Instead, they are misrepresenting and exaggerating it into an extreme and easy-to-attack position (bankrupting the system, ignoring all sick patients) and then arguing against that distorted version.
Question 5: A research team hypothesises that a new mindfulness app can reduce stress levels in medical students. They conduct a study where one group uses the app for 15 minutes daily for a month, and a control group does not. Which of the following findings would most strongly support their hypothesis?
- Students in the app group reported enjoying the app's user interface and design.
- Both the app group and the control group showed a slight decrease in self-reported stress levels by the end of the month.
- The app group showed a statistically significant decrease in cortisol (a stress hormone) levels, while the control group showed no change. (Correct answer)
- Several students in the control group started their own independent mindfulness practices during the study period.
Correct answer: The app group showed a statistically significant decrease in cortisol (a stress hormone) levels, while the control group showed no change.
This finding provides the strongest support because it uses a measurable, objective biological marker (cortisol) to demonstrate a physiological change directly related to stress. The fact that the control group showed no change isolates the app as the likely cause of the decrease, strengthening the causal link proposed in the hypothesis.
Question 6: Argument: 'Allergic reactions are a type of immune response. Anaphylaxis is a severe allergic reaction. Therefore, anaphylaxis is a type of immune response.' Which of the following best describes this argument?
- A weak analogy based on similar-sounding terms.
- An inductive argument based on specific observations.
- A valid deductive argument where the conclusion logically follows from the premises. (Correct answer)
- A flawed argument because it contains a circular reasoning fallacy.
Correct answer: A valid deductive argument where the conclusion logically follows from the premises.
This is a classic example of a valid deductive argument, specifically a categorical syllogism. If the two premises ('All A are B' and 'C is a type of A') are true, the conclusion ('C is a type of B') must necessarily be true. The conclusion logically and inescapably follows from the given statements.
HPAT - Health Professions Admissions Critical Thinking and Arguments Questions and Answers
A hospital administrator states: 'We recently installed hand sanitiser dispensers at the entrance of every ward.
Over the following three months, we observed a 20% reduction in the rate of hospital-acquired infections compared to the three months prior.
Therefore, the new dispensers are the cause of this improved patient safety.' Which of the following, if true, would most weaken this argument?