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25 Cards in this Set
- Front
- Back
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What's a hypothesis? |
An assumption made as a starting point form an investigation. Like a prediction |
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What's quantitative data? |
Numerical observations or measurements |
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What's qualitative data? |
Non-numerical observations |
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What's continuous data? |
Data that can take any value on a continuous numerical scale |
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What's discrete data? |
Data where you can't have in-between values. |
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What's bivariate data? |
Combination of two variables |
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What's primary data? |
Data you have collected yourself |
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What's secondary data? |
Takes information that someone has already found |
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What's categorical data? |
Name of data that has been put into groups |
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What's ranked data? |
Values or observations that can be ranked, they can be counted or orders but not measured |
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What's population? |
Everything or everybody involved in an investigation |
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What's census data? |
Contains information about every member of the population |
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What's a sample? |
Contains information about part of the population |
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What are sampling units? |
The people or items that are to be sampled |
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What's a sampling frame? |
A list of the people or items that are to be sampled |
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What's a survey? |
Collection of data from a given population |
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What's a pilot survey? |
It conducted on small scales to test the design and methods of that survey |
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What's a questionnaire? |
Set of question to obtain data |
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What's a open question? |
One that has no suggested answers |
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What's a closed question? |
Has a set of answers for the respondent to choose from |
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What's cluster sampling? |
Used when the population being sampled splits into groups or clusters and that then is sampled |
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What's stratified sampling? |
A stratified sample is when a sample is taken from each stratum(sub-population) or sub population a random sample is taken |
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What's quota sampling? |
Method of sampling used in opinion polling and market research each member will have different characteristics and a number is sampled from each section of population who have these certain characteristics |
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What's quota sampling? |
Method of sampling used in opinion polling and market research each member will have different characteristics and a number is sampled from each section of population who have these certain characteristics |
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What's systematic sampling? |
Used when the population is very large, a starting point is chosen at random and therefore items are chosen at regular intervals |
