Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
24 Cards in this Set
- Front
- Back
|
Data |
Recorded values whether numbers or labels, together with their context. |
|
|
Data table |
An arrangement of data in which each row represents a case and each column represents a variable. |
|
|
Context |
The context ideally tells you who was measured, what was measured how the data were collected,where the data were collected, and when and why the study was performed. |
|
|
Case |
An individual about whom or which we have data . |
|
|
Respondent |
Someone who answers, or responds to , a survey. |
|
|
Subject |
A human experimental unit. Also called a subject. |
|
|
Participant |
A human experimental unit. Also called a subject. |
|
|
experimental unit |
An individual in a study for which or for whom data values recorded. Human experimental units are usually called subjects or participants. |
|
|
Record |
Information about an individual in a database. |
|
|
Sample |
A subset of a population, examined in hope of learning about the population. |
|
|
Population |
The entire group of individuals or instances about whom we hope to learn. |
|
|
Variable |
A variable holds information about the same characteristic of many cases. |
|
|
Categorical or quanitive variable |
A variable that names categories with words or numerals. |
|
|
Nominal variable |
The term nominal can be applied to a variable whose values are used only to name categories. |
|
|
Quantitative variable |
A variable in which the numbers are values of measured quantities with units. |
|
|
Units |
A quantity or amount adopted as a measurement, such as dollars,hours, or grams. |
|
|
Identifier variable |
A categorical variable that records a unique value for each case , used to name or identify it. |
|
|
Ordinal variable |
The term "ordinal" can be applied to a variable whose categorical values whose categorical values possess some kind of order. |
|
|
Frequency table ( Relative frequency table) |
A frequency table lists the categories in a categorical variable and gives the count ( or percentage) of observations for each category. |
|
|
Distribution |
The distribution of a variable gives °the possible valued of the variable gives. ° the relative frequency of each value. |
|
|
Area of principle |
In a statistical display, each data value should be represented by the same amount of area. |
|
|
Bar chart( relative frequency bar chart) |
Bar charts show a bar whose area represents the count (or percentage) of observations for each category. |
|
|
Pie chart |
Pie charts show how a "whole" divides into categories by showing a wedge of a circle whose area corresponds to the proportion in each category. |
|
|
Categorical data condition |
The methods in this chapter are appropriate for displaying and describing categorical data. Be careful not to use them with quantitative data. |
