Deck 17: Biostatistics

Question 1

Which is determined by subtracting the highest score from the lowest score?

A) Standard deviation
B) Range
C) Variance
D) Both A and B
E) All of the above

Answer 1

Range

Question 2

This error occurs when the null hypothesis is rejected, and it is true.

A) Type IV
B) Type II
C) Type III
D) Type I
E) None of the above

Answer 2

Type I

Question 3

To report an average without a measure of dispersion can misrepresent the data.

Answer 3

True

Question 4

The median is the ________.

A) Average
B) Most frequently occurring value
C) Midpoint
D) Both A and B
E) All of the above

Question 5

Characteristics of effective tables and graphs include ________.

A) Appearance
B) Accuracy
C) Clarity
D) Both A and B
E) All of the above

Question 6

A bar graph is used to present categorical data.

Question 7

Most events in this world tend to fall into a bell-shaped curve called a normal distribution, sometimes called the ________.

A) Left skew
B) Positive skew
C) Gaussian distribution
D) Right skew
E) None of the above

Question 8

The mode is the ________.

A) Most frequently occurring value
B) Average
C) Midpoint
D) Both A and B
E) All of the above

Question 9

Which theorem suggests that if an infinite number of randomly selected samples is drawn from a population, the means of the samples tend to be normally distributed, and the average of the sample mean is very close to the mean?

A) Bell distribution
B) Normal distribution
C) Central limit
D) Skew
E) None of the above

Question 10

The mean of the following set of values is 3: 7, 7, 8, 8, and 5.

Question 11

What requires that critical thinking be used to explain the meaning and application of the findings and identify possible factors that could influence the results?

A) Data analysis
B) Interpretation
C) Data assessment
D) Causality
E) None of the above

Question 12

The following set of values has two modes: 7, 7, 8, 8, 5.

Question 13

Which is the most common correlation coefficient?

A) Analysis of variance
B) Spearman rank-order correlation coefficient
C) Student t test
D) Pearson product-moment correlation coefficient
E) All are equally common.

Question 14

What involves the application of statistical tests to the data in order to organize, describe, summarize, and analyze it to answer a research question or test a hypothesis?

A) Causality
B) Data interpretation
C) Data assessment
D) Data analysis
E) Both A and D

Question 15

Which of the following is determined by subtracting the square of the standard deviation?

A) Variance
B) Square deviation
C) Range
D) Both A and B
E) All of the above

Question 16

Which of the following can be determined by examining the mean and median of the distribution?

A) Gaussian distribution
B) Bell curve
C) Normal bell distribution
D) Skew
E) None of the above

Question 17

Which is a perfect correlation?

A) +.75
B) 0
C) +.98
D) -98
E) +1

Question 18

A histogram uses dots on a frequency table.

Question 19

This refers to a relationship or association between variables that can be measured mathematically.

A) Set limit theorem
B) Correlation
C) Trend
D) Causality
E) Both A and B

Question 20

The mean is commonly considered to be the ________.

A) Most frequently occurring value
B) Midpoint
C) Average
D) Both A and B
E) All of the above

Question 21

Choose the item that best matches each item of the following:
Organizes data into mutually exclusive categories that are rank-ordered based on some criterion

A)Scales of measurement
B)Ordinal scale
C)Discrete variable
D)Continuous variable
E)Nominal scale

Question 22

Choose the item that best matches each item of the following:
Large and infinite number of measures along a continuum

A)Scales of measurement
B)Ordinal scale
C)Discrete variable
D)Continuous variable
E)Nominal scale

Question 23

Choose the item that best matches each item of the following:
Represented numerically

A)Scales of measurement
B)Ordinal scale
C)Discrete variable
D)Continuous variable
E)Nominal scale

Question 24

Choose the item that best matches each item of the following:
Controlled or uncontrolled diabetes is an example of which scale?

A)Scales of measurement
B)Ordinal scale
C)Discrete variable
D)Continuous variable
E)Nominal scale

Question 25

Choose the item that best matches each item of the following:
Nominal, ordinal, interval, and ratio

A)Scales of measurement
B)Ordinal scale
C)Discrete variable
D)Continuous variable
E)Nominal scale