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;
27 Cards in this Set
- Front
- Back
|
Provide a brief definition of a unit of analysis |
Unit of an analysis is a method |
|
|
Provide a brief definition of a variable |
A column |
|
|
Provide a brief definition of a value |
data points |
|
|
Provide a brief definition of an association |
A relationship of data points on two variables |
|
|
In a positive association, the variables involved are |
Moving in the same direction |
|
|
In a negative association, the variables involved are |
Moving in the opposite direction |
|
|
Causal relationship between two variables are |
1. X,Y must be associated 2. Illusion Test 3. Causal order |
|
|
Independent variables are: |
Labeled "x" and are causes |
|
|
Dependent variables are: |
Labeled "y" and are effects |
|
|
Rows in a spread sheet are |
Unit of analysis |
|
|
Columns in a spreadsheet are |
Variables |
|
|
Boxes in a spreadsheet are |
Data points |
|
|
Provide a brief definition of a hypothesis |
Prediction of an association |
|
|
Provide a brief definition of a theory |
Explanation of the hypothesis |
|
|
What is a population? |
A set of all units which a sample is drawn |
|
|
What is a sample? |
a subset of units drawn from the population |
|
|
What is a sampling frame? |
A list of all units of the population |
|
|
In order for the sample to be representative, the sample must be selected: |
Randomly |
|
|
What is the convenience sample, and why is it not very useful for scientific research? |
It is a selected sample. You want randomness for an accurate answer |
|
|
What foes it mean for a random sample to be representative? |
Sample proportions must equal population proportions |
|
|
What is the most important thing the researcher do to improve the representativeness of a sample? |
Increase the sample size |
|
|
In a experimental design, there are two groups: |
Control and experimental |
|
|
Well design experiments tend to be.....on external validity but....on internal validity. |
Weak, strong |
|
|
Non experimental random sample surveys tend to be.......on external validity but.....on internal validity |
Strong, weak |
|
|
What is Internal validity? |
X is really the cause of Y |
|
|
What is external validity? |
Generalizability |
|
|
What is random assignment? |
Random placement into a experimental group or control group |
