Unit 1 Questions Flashcards
In what terms is a hypothesis defined?
Variables (at least 2)
The subset of the total number of elements that share a characteristic is a …?
sample
A sample must be …?
representative
can a dependent variable be defined as a proposed consequence?
yes
What is the independent and dependent variable in this example?
A sedentary lifestyle increases the presence of depressive symptoms
Sedentarism: independent
Depression: dependent
What is the independent and dependent variable in this example?
People with high self-esteem will show less anxiety when speaking in public.
Self-esteem: independent
Anxiety: dependent
What can quasi-quantitative variables be?
Dichotomized or Polytomized
What can quantitative variables be?
Continuous or Discrete
What can qualitative variables be?
dichotomous or polytomous
What is the variable marital status (single, etc.)
polytomous
The variable “age” is quantitative and …?
discrete
The variable “income” is quantitative and …?
continuous
The variable “temperature” is quantitative and …?
quantitative
Order the measurement scales from least to most arbitrariness between values and categories
- interval, ordinal, ratio, nominal
nominal
ordinal
interval
ratio
What does arbitrariness mean?
“randomness”
What measurement scale does the variable use?
the money artists make from their music
ratio
In which variable do values only represent hierarchy?
in ordinal variables
in which scale can the mean not be calculated?
nominal scale
wich scale admits negative numbers?
internal scale
which scale admits proportional relationships (twice as many as)?
ratio scale
What scale of measurement corresponds to the variable blood alcohol level?
ratio
Which measurement scale corresponds to the variable likert-type scale from -3 to 3?
interval
What scale of measurement corresponds to the variable place in a contest (1 first 2 second 3 third)?
ordinal
What scale does quantitative/ratio always use?
0 - …
-> 0 is absence of something
What scale does quantitative/interval have?
any scale (-5 to 5, -10.000 to 8000, etc.)