EXAMS YAWAAAA Flashcards
(49 cards)
mirrors experimental research but it is not true experimental research where a causal relationship can be determined with the use of dependent and independent variables.
do not use random samples but assigned samples.
Quasi-experimental research
The primary objective is to identify a cause-effect relationship between the variables where the samples are randomized.
true experimental research
A nonexperimental research design focuses on the description of factors, variables, or phenomena that occur in nature.
Descriptive Research
Also called causal-comparative research, its primary objective is to compare two variables in order to identify whether there exists a causative relationship between them.
This kind of research usually involves two or more groups and one independent variable.
Comparative Research
Its primary objective is to compare two variables then identify the relationship between them.
Correlational Research
empirical, straightforward, and can test their reliability and validity.
Quantitative research design
The research design of a study can easily be identified based on the ———- of a journal article.
abstract
The main purpose of the ———————— is to find out whether an intervention considered as the independent variable has an effect on a dependent variable.
experimental research design
An experimental design must contain the following elements:
treatment or intervention
controlling extraneous variables
randomization of participants
treatment or intervention
controlling extraneous variables
randomization of participants
requires the independent variable to be manipulated but it lacks a key element of an experimental design, which is randomization.
Quasi-Experimental Design
studies the association between two variables but does not tell about its causality.
Correlational Design
Differences between positive and negative correlation
Positive- As one variable increases, so is the other variable. This is also known as direct relationship
Negative- As one variable increases, the other variable decreases. This is also known as inverse relationship.
Three most common types of descriptive research
Survey Research
Demographic Research
Epidemiological Research
explores the trends in the characteristics of a group of people
Survey Research
describes basic life events
Demographic Research
studies different patterns of disease and health
Epidemiological Research
explain different patterns of information about a target population.
Descriptive research designs
is a group of people possessing a similar characteristic
Population
pertains to the subgroup or a portion from a population
Sample
Types of Probability Sampling
Simple Random Sampling
Systematic Random Sampling
Stratified Random Sampling
pertains to the division of the target population into subgroups and randomly selects participants from each subgroup.
Stratified Random Sampling
when the researcher randomly selects their participants from a list of all the individuals from the population
Simple Random Sampling
the researcher randomly decides on a starting point in the list and chooses every nth case from the population.
Systematic Random Sampling
Sample is chosen by the researcher from the target population rather than being randomly selected.
Non-probability Sampling
