A method of statistical analysis that pools summary data (ex. means, RRs) from multiple studies for a more precise estimate of the size of an effect is known as _____
#2
The power of a study is increased with _____ precision of measurement
#3
The power of a study is increased with _____ expected effect size
#4
What is the t-test used for? (biostatistics)
#5
"β" with reference to statistical error
#6
power (epidemiology)
#7
What is the relationship between standard error of the mean and standard deviation?
#8
In a normal distribution, how many data points fall within three standard deviations from the mean?
#9
In a normal distribution, how many data points fall within two standard deviations from the mean?
#10
In a normal distribution, how many data points fall within one standard deviation from the mean?
Sample size for non-inferiority trials US Medical PG Flashcards - Medical Study Cards
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Sample size for non-inferiority trials Flashcard Deck - 10 Cards
Flashcard 1: A method of statistical analysis that pools summary data (ex. means, RRs) from multiple studies for a more precise estimate of the size of an effect is known as _____
Answer: meta-analysis
Flashcard 2: The power of a study is increased with _____ precision of measurement
Answer: increased
Flashcard 3: The power of a study is increased with _____ expected effect size
Answer: increased
Flashcard 4: What is the t-test used for? (biostatistics)
Answer: Compare means of two groups.
mnemonic: Mr. T is mean.
Flashcard 5: "β" with reference to statistical error
Answer: the probability of making a Type II statistical (false negative) error
Flashcard 6: power (epidemiology)
Answer: probability of detecting a differential effect if it is actually present
Extra: power = (1-β)
Flashcard 7: What is the relationship between standard error of the mean and standard deviation?
Answer:
Flashcard 8: In a normal distribution, how many data points fall within three standard deviations from the mean?
Answer: 99.7%
Flashcard 9: In a normal distribution, how many data points fall within two standard deviations from the mean?
Answer: 95%
Flashcard 10: In a normal distribution, how many data points fall within one standard deviation from the mean?
Answer: 68%
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