#1
What is the purpose of a variable in research?
To store and manage data
ExplanationVariables in research are used to hold and organize data for analysis.
#2
What is sampling in research?
The process of selecting a subset of individuals or objects from a larger population
ExplanationSampling involves selecting a representative group from a larger population for study.
#3
What is a population in research?
The entire group of individuals or objects that the researcher is interested in studying
ExplanationA population in research refers to the entire group of individuals or objects that the researcher wants to study or draw conclusions about.
#4
What is the purpose of a research design?
To plan and structure the overall research process
ExplanationResearch design outlines the strategy for conducting research, including data collection, analysis, and interpretation.
#5
In research design, what does 'dependent variable' refer to?
A variable that is measured and expected to change
ExplanationThe dependent variable is the factor being tested and measured in an experiment.
#6
What is a confounding variable in research?
A variable that is irrelevant to the study but affects the results
ExplanationConfounding variables are factors other than the independent variable that may influence the outcome of an experiment.
#7
What is the difference between qualitative and quantitative variables?
Qualitative variables can only take on specific values, while quantitative variables can take on a range of values.
ExplanationQualitative variables describe qualities or characteristics, while quantitative variables represent quantities or amounts.
#8
What is a control group in an experiment?
The group of participants who do not receive the experimental treatment
ExplanationThe control group serves as a baseline for comparison in an experiment by not receiving the experimental treatment.
#9
What is reliability in research?
The degree to which a measurement tool produces consistent results
ExplanationReliability refers to the consistency and stability of measurements or results over time and across different conditions.
#10
What is a continuous variable in research?
A variable that can take on any value within a certain range
ExplanationContinuous variables can take on an infinite number of values within a specified range.
#11
What is a null hypothesis in research?
A hypothesis that there is no relationship between variables
ExplanationThe null hypothesis states that there is no significant difference or relationship between the variables being studied.
#12
What is a moderator variable in research?
A variable that influences the relationship between the independent and dependent variables
ExplanationA moderator variable affects the strength or direction of the relationship between the independent and dependent variables.
#13
What is the purpose of randomization in research experiments?
To ensure all participants have equal chances of being assigned to different groups
ExplanationRandomization helps minimize bias and ensures that all participants have an equal chance of being assigned to different experimental groups.
#14
What is internal validity in research?
The extent to which a study's design ensures that observed effects are due to the manipulation of the independent variable
ExplanationInternal validity refers to the degree to which a study accurately measures what it intends to measure, without influence from extraneous factors.
#15
What is external validity in research?
The extent to which study findings can be generalized to other populations
ExplanationExternal validity refers to the extent to which the results of a study can be generalized or applied to populations beyond the study sample.
#16
What is a mediator variable in research?
A variable that influences the dependent variable
ExplanationA mediator variable explains the relationship between the independent and dependent variables by mediating or intervening in that relationship.