Data Analysis Flashcards
Define the term ‘Data.’
Data refers to information that has been collected from a sample in a study.
Define the term ‘Descriptive Statistics.’
Descriptive Statistics are a way of summarising and describing data.
What are the two types of Descriptive Statistics.’
The two types of Descriptive Statistics are Measures of Central Tendency and Measures of Dispersion.
Define the term ‘Measures of Central Tendency.’
Measures of Central Tendency are measures of average that tell us something typical of a set of data.
How many Measures of Central Tendency are there and what are their names?
There are three Measures of Central Tendency that can be used depending on specific circumstances; Mean, Median and Mode.
Define the term ‘Mean.’
The Mean is the ‘average’ value.
What is a strength of calculating the Mean?
A strength of the Mean is that it takes into consideration all values and therefore is more likely to be representative.
What is a weakness of calculating the Mean?
A weakness of calculating the Mean is its not appropriate if there are outliers as its misleading when trying to establish a typical score.
Define the term ‘Median.’
The Median is the central value when the data is arranged in an order.
What is a strength of calculating the Median?
A strength of the Median is that its an appropriate measure if there are outliers in the data as it is not distorted.
What is a weakness of calculating the Median?
A weakness of the Median is that it is less representative than the mean as it doesn’t take into account all scores.
Define the term ‘Mode.’
The Mode is the value that occurs most often in the data.
What is a weakness of calculating the Mode?
A weakness of the Mode is that there can be no mode, or more than one mode; bi-modal, trimodal etc. This is a weakness because at times it does not indicate the a typical value(s).
What is a strength of calculating the Mode?
A strength of calculating the mode is that it is the only measure which can be used for nominal category data as no calculations are required.
