CLINICAL SCIENCE & PRACTICE EXAM 1
PAPER 2026 SOLVED QUESTIONS AND FULL
SOLUTION GRADED A+
◉ two-way hypothesis.
Answer: does not specify direction
- "different amount"
- "differing results"
◉ null hypothesis (H0).
Answer: no association exists between predictor and the outcome
variable
◉ Type I Statistical Error.
Answer: false positive
◉ Type II Statistical Error.
Answer: false negative
◉ α.
Answer: probability that you will make a Type I Statistical Error
,◉ β.
Answer: probability that you will make a Type II Statistical Error
◉ power.
Answer: 1-β, probability of correctly rejecting the null hypothesis
◉ NNT.
Answer: 1/ARR
◉ NNH.
Answer: 1/ARI
◉ ARR (absolute risk reduction).
Answer: CER - EER
◉ RR (relative risk/risk ratio).
Answer: EER/CER
◉ CER.
Answer: control event rate
, ◉ EER.
Answer: experimental event rate
◉ RRR (relative risk reduction).
Answer: 1 - RR
◉ what does a negative ARR mean?.
Answer: you had more of the primary outcome in the experimental
group
◉ ARD (absolute risk difference).
Answer: EER - CER
◉ nominal data.
Answer: - distinct categories
- (ex. alive or dead)
◉ ordinal data.
Answer: - distinct categories
- categories have rank order
- (ex. pain scales = objective based on patient perception)
PAPER 2026 SOLVED QUESTIONS AND FULL
SOLUTION GRADED A+
◉ two-way hypothesis.
Answer: does not specify direction
- "different amount"
- "differing results"
◉ null hypothesis (H0).
Answer: no association exists between predictor and the outcome
variable
◉ Type I Statistical Error.
Answer: false positive
◉ Type II Statistical Error.
Answer: false negative
◉ α.
Answer: probability that you will make a Type I Statistical Error
,◉ β.
Answer: probability that you will make a Type II Statistical Error
◉ power.
Answer: 1-β, probability of correctly rejecting the null hypothesis
◉ NNT.
Answer: 1/ARR
◉ NNH.
Answer: 1/ARI
◉ ARR (absolute risk reduction).
Answer: CER - EER
◉ RR (relative risk/risk ratio).
Answer: EER/CER
◉ CER.
Answer: control event rate
, ◉ EER.
Answer: experimental event rate
◉ RRR (relative risk reduction).
Answer: 1 - RR
◉ what does a negative ARR mean?.
Answer: you had more of the primary outcome in the experimental
group
◉ ARD (absolute risk difference).
Answer: EER - CER
◉ nominal data.
Answer: - distinct categories
- (ex. alive or dead)
◉ ordinal data.
Answer: - distinct categories
- categories have rank order
- (ex. pain scales = objective based on patient perception)