Statistical Tests- Levels Of Measurement Flashcards
What is a positive correlation?
As one variable increases, the other increases.
What is a negative correlation?
As one variable increases, the other decreases.
What does zero correlation indicate?
No association between the variables.
What does a non-directional correlational hypothesis state?
There is a relationship between the two variables, without specifying the direction.
What is nominal data?
Categorical data without an order, e.g., countries in a 100m race.
What is ordinal data?
Categories with a natural order, but the difference between points is not consistent, e.g., height differences in a class.
What is interval data?
Data with precise distances between each point on a scale, e.g., centimeters.
What is the purpose of a sign test?
To determine the difference between pairs of data.
What is required to reject the null hypothesis in a correlation test?
The calculated value must be equal to or less than the critical value.
What are the three levels of measurement?
- Nominal
- Ordinal
- Interval
What is a repeated measures design?
A design where the same participants are used in all conditions.
What is a matched pairs design?
A design where participants in one group are paired with participants in another group based on certain criteria.
What is an independent design?
A design where different participants are used in each condition.
True or False: A parametric test can be used with nominal data.
False.
Fill in the blank: The _____ hypothesis is accepted when the calculated value is greater than the critical value.
null
