Question 1

There are four levels of measurement. What is ordinal measurement?&#10;A) Classification of characteristics into mutually exclusive categories&#10;B) Ranking of objects based on their relative standing on an attribute&#10;C) Indicating not only the ranking of objectsbut the amount of distance between them&#10;D) Distinguished from interval measurement by having a rational zero point

Accepted Answer

Ordinal measurement involves ranking objects or individuals based on their relative standing or level with respect to a particular attribute. It does not provide information about the amount of difference between the ranks, only the order.

Question 2

Which is an example of an interval measurement?&#10;A) Gender&#10;B) Fahrenheit temperature scale&#10;C) Blood type&#10;D) Marital status

Accepted Answer

The Fahrenheit temperature scale is an example of interval measurement because it measures temperature with equal intervals between points, but it does not have a true zero point.

Question 3

There are four levels of measurement. What is nominal measurement?&#10;A) Classification of characteristics into mutually exclusive categories&#10;B) Ranking of objects based on their relative standing on an attribute&#10;C) Indicating not only the ranking of objects but the amount of distance between them&#10;D) Distinguished from interval measurement by having a rational zero point

Accepted Answer

Nominal measurement involves categorizing data into distinct categories where the order of the categories is not important. This level of measurement is about classifying characteristics into mutually exclusive (non-overlapping) categories, where each item is placed into one and only one category.

Question 4

It is not always easy to identify a variable's level of measurement. Which measures usually are discernible?&#10;A) Nominal and ordinal&#10;B) Ordinal and interval&#10;C) Ratio and interval&#10;D) Ratio and nominal

Accepted Answer

The answer of It is not always easy to identify...

Question 5

What type of data can researchers summarize and describe with descriptive statistics?&#10;A) Qualitative&#10;B) Quantitative&#10;C) Qualitative and quantitative&#10;D) Neither qualitative or quantitative

Accepted Answer

Descriptive statistics can summarize and describe quantitative data, which is data that can be measured and expressed in numbers.

Question 6

What type of distribution is used to organize numeric data?&#10;A) Frequency&#10;B) Unimodal&#10;C) Multimodal&#10;D) Normal

Accepted Answer

Frequency distribution is used to organize numeric data into classes or intervals, and then count the number of data points that fall into each class or interval.

Question 7

What does a layperson call the center of a distribution?&#10;A) Average&#10;B) Central tendency&#10;C) Median&#10;D) Mean

Accepted Answer

The term "average" is commonly used by laypeople to refer to the center of a distribution, although it can technically refer to different measures like mean, median, or mode.

Question 8

What is the preferred measure of central tendency?&#10;A) Average&#10;B) Mode&#10;C) Median&#10;D) Mean

Accepted Answer

Mean is the preferred measure of central tendency because it takes into account all the values in a dataset, unlike the median and mode, which only consider the middle value and the most frequently occurring value, respectively.

Question 9

The nurse researcher is examining how spread out the data is. Which are measures of variability?&#10;A) Range and deviation scores&#10;B) Standard deviation and variance&#10;C) Standard deviation and deviation scores&#10;D) Range and variance

Accepted Answer

The answer of The nurse researcher is examining how spread...

Question 10

The nurse researcher has scores from 62 to 98 on the exam. What is the range?&#10;A) 36&#10;B) 62&#10;C) 98&#10;D) 160

Accepted Answer

The range is the difference between the highest and lowest scores, which is 98 - 62 = 36.

Question 11

The nurse researcher is calculating the standard deviation. What is the standard deviation?&#10;A) The average amount of deviation of values from the mode and is calculated for every other score&#10;B) The average amount of deviation of values from the median and is calculated forevery other score&#10;C) The average amount of deviation of values from the mean and is calculated for every score&#10;D) The average amount of deviation of values from the median and is calculated for every score

Accepted Answer

The answer of The nurse researcher is calculating the standard...

Question 12

The nurse researcher is reading about bivariate descriptive statistics. Bivariate descriptive statistics describe how many relationships between variables?&#10;A) 1&#10;B) 2&#10;C) 3&#10;D) 4

Accepted Answer

The answer of The nurse researcher is reading about bivariate...

Question 13

What systems of measurement are cross tabulated on a contingency table?&#10;A) Nominal and ordinal&#10;B) Ordinal and interval&#10;C) Ratio and interval&#10;D) Ratio and nominal

Accepted Answer

The answer of What systems of measurement are cross tabulated...

Question 14

The nurse researcher knows that the most frequently used correlation coefficient is the product-moment correlation coefficient (Pearson's r). What measurement variables are used?&#10;A) Nominal and ordinal&#10;B) Ordinal and interval&#10;C) Ratio and interval&#10;D) Ratio and nominal

Accepted Answer

The answer of The nurse researcher knows that the most...

Question 15

Several risk indexes describe outcomes in relation to exposures for a two-group situation with dichotomous outcomes. These indexes provide useful information for making clinical decisions. What index expresses the estimated proportion of people who would be spared from an adverse outcome through exposure to an intervention?

A) Absolute risk reduction
B) Relative risk reduction
C) Odds ratio
D) Number needed to treat

Accepted Answer

The answer of Several risk indexes describe outcomes in relation...

Deck 16: Descriptive Statistics