Construct and Variables Flashcards
Sometimes referred to as “numeric” variables, these are variables that represent a measurable quantity.
Quantitative Variable
Sometimes referred to as “categorical” variables, these are variables that take on names or labels and can fit into categories.
Qualitative Variable
mental abstractions derived from the combination of concepts, or your mental representation of the world around you.
Constructs
age, sex, height, weight, attitude, pollution, education
Concepts
Age - young or old
Sex - male and female H
eight - small, average, tall
Weight - light, heavy
Attitude - good, bad
Pollution - land, air, water
Education - grade school, high school, college
Constructs
is the variable that is deliberately manipulated or changed by the researcher in an experiment. It is the cause or input that researchers control to observe its effect on the dependent variable.
Example: In a study investigating the effect of different study methods on exam scores, the independent variable would be the study method (e.g., reading, taking practice tests).
Independent Variable
is the outcome or result that is measured or observed in response to changes in the independent variable. It’s the variable being studied to see if it changes due to the manipulation of the independent variable.
Example: In the study mentioned earlier, the dependent variable would be the exam scores.
is the outcome or result that is measured or observed in response to changes in the independent variable. It’s the variable being studied to see if it changes due to the manipulation of the independent variable.
Dependent Variable
an additional variable that is not the main focus of the study but can impact the relationship between the independent and dependent variables. It can introduce bias or distortion into the results.
Example: In the study on study methods, if the participants’ sleep patterns also vary with their chosen study methods and impact their exam scores, sleep patterns would be a confounding variable.
Confounding or Extraneous Variable
a variable that represents categories or groups. The values of a ____ variable are labels or names that do not have numerical meaning.
Example: Gender (male, female, non-binary) or types of fruits (apple, orange, banana)
Categorical Variable
a variable that can take any value within a certain range. It’s characterized by having an infinite number of possible values.
Example: Height, weight, and temperature are continuous variables because they can have decimal values and can be measured with precision.
Continuous Variable
a variable that can be expressed in numerical terms and has meaningful numerical values.
Examples: Age, income, number of products sold are quantitative variables.
Quantitative Variable
represents different categories or groups and is non-numerical in nature. It describes qualities or attributes.
Examples: Hair color, education level, and types of animals
Qualitative Variable (Categorical Variable)
characteristics, qualities, or properties that can take on different values and can be measured or manipulated in research. They are essential components in the design and analysis of experiments and studies.
Observed directly or indirectly.
Variables
represents categories with no inherent order or ranking.
Nominal Variable
has ordered categories, but the intervals between them might not be equal.
Ordinal Variable