TYPES OF QUANTITATIVE RESEARCH || PRACTICAL RESEARCH 2

Summary

This educational video delves into quantitative research, distinguishing between non-experimental and experimental types. Non-experimental encompasses descriptive and correlational research, focusing on situational descriptions and variable relationships without intervention. Experimental research, in contrast, manipulates variables to establish cause and effect, with true and quasi-experimental designs offering varying levels of internal validity. The lesson provides examples to illustrate each type, aiming to clarify the research landscape for students.

Takeaways

• 📚 Quantitative research is divided into non-experimental and experimental types.
• 🔍 Non-experimental research includes descriptive and correlational research, focusing on describing phenomena or relationships without intervention.
• 🔬 Descriptive research aims to describe the characteristics of populations or phenomena without manipulating variables or seeking cause and effect.
• 📊 Correlational research investigates the nature of relationships between variables without necessarily exploring the underlying causes.
• 📈 Positive correlation indicates that as one variable increases, the other also increases, while negative correlation shows an opposite trend.
• 🧐 Experimental research is designed to establish causal relationships with high validity through hypothesis testing and statistical analysis.
• 🎯 True experimental research is characterized by random group formation, manipulation of treatments, and testing cause and effect relationships.
• 📝 One group post-test design in experimental research measures a single group's dependent variable after an intervention.
• 📉 Two groups post-test design compares an experimental group with a control group after an intervention.
• 🔄 Pre-test post-test design involves both experimental and control groups, with measurements taken before and after an intervention.
• 🌐 Quasi-experimental research is similar to true experimental design but lacks random assignment of subjects to conditions.

Q & A

What are the two main classifications of quantitative research?

The two main classifications of quantitative research are non-experimental and experimental research.

What type of research is characterized by describing a situation or phenomenon without interference?

Non-experimental research is characterized by describing a situation or phenomenon without any interference from the researcher.

What are the two major kinds of non-experimental research mentioned in the script?

The two major kinds of non-experimental research mentioned are descriptive research and correlational research.

How does descriptive research differ from experimental research in terms of variable manipulation?

Descriptive research does not involve manipulation of variables or searching for cause and effect relationships, unlike experimental research.

What is the purpose of descriptive research in the context of the script?

The purpose of descriptive research is to describe the nature, characteristics, and components of populations or phenomena, and to determine the frequency and general attributes of the currently existing situation.

Can you provide an example of a situation where descriptive research might be used, as mentioned in the script?

An example of when descriptive research might be used is to find out how many senior high school students spend time playing online games, or how healthy the food served during lunchtime in public schools is.

What is the main focus of correlational research?

The main focus of correlational research is to investigate the nature of relationships or associations between variables without necessarily investigating the causal reasons underlying them.

What are the two types of correlation mentioned in the script?

The two types of correlation mentioned in the script are positive correlation and negative correlation.

How does experimental research differ from non-experimental research in terms of intervention?

Experimental research involves making changes or introducing treatments, which is a form of intervention, unlike non-experimental research where there is no intervention.

What are the three characteristics that identify true experimental research?

The three characteristics that identify true experimental research are randomly formed groups, manipulation of the treatment, and the main purpose of testing the true cause and effect relationship of variables.

What is the main difference between true experimental research and quasi-experimental research?

The main difference between true experimental research and quasi-experimental research is the absence of random assignment of subjects to conditions in quasi-experimental research.

How does the script suggest that one might measure the strength of the relationship between two variables?

The script suggests that one can measure the strength of the relationship between two variables through correlational research.

Outlines

00:00

🔍 Introduction to Quantitative Research Types

This paragraph introduces the topic of the video, which is the discussion of different types of quantitative research. It distinguishes between non-experimental and experimental research, and further categorizes non-experimental research into descriptive and correlational types. The paragraph emphasizes the non-interventionist nature of non-experimental research, where data is collected without altering the variables, and provides examples such as studying online gaming habits of students or the nutritional value of school lunches. It also introduces the concept of experimental research, which involves hypothesis testing and the manipulation of variables to establish cause and effect relationships.

05:01

📊 Descriptive and Correlational Research Details

The second paragraph delves deeper into the specifics of descriptive and correlational research within the non-experimental category. Descriptive research is highlighted for its focus on detailing the characteristics of a population or phenomenon without seeking cause and effect, exemplified by surveys on student gaming habits or academic performance. Correlational research, on the other hand, investigates the relationships between variables without necessarily establishing causality, such as the link between math grades and practical research scores. The paragraph also explains different types of correlations, including positive and negative correlations, using examples like the relationship between family income and daily allowance, or the inverse relationship between online gaming and GPA.

10:09

🧪 Characteristics of Experimental Research Designs

This paragraph outlines the features of experimental research, emphasizing its goal of establishing high causal validity through a scientific approach that includes hypothesis testing, statistics, and probability. It introduces the concept of true experimental research, characterized by random group formation, manipulation of treatments, and the aim to test cause and effect relationships with the highest internal validity. The paragraph also describes different experimental designs, such as one-group post-test, two-groups post-test, and pre-test/post-test designs, each with its methodology and purpose in testing the effects of interventions like educational tools on academic performance.

15:11

🌐 Quasi-Experimental Research and Conclusion

The final paragraph discusses quasi-experimental research, which is similar to true experimental design but lacks random assignment of subjects to conditions. It explains that in quasi-experimental research, some subjects receive interventions while others do not, allowing for the study of effects without full randomization. The paragraph concludes by thanking viewers for watching, encouraging them to like, subscribe, and stay updated for more video tutorials, and identifies the guide for learning in the沃尔玛 channel, presumably a mispronunciation or error in the script.

Keywords

💡Quantitative Research

Quantitative research is a systematic investigation that focuses on numerical data and statistical analysis to test hypotheses and draw conclusions. In the video, it is the central theme, with the speaker discussing its different types and applications. The script mentions that quantitative research is divided into non-experimental and experimental categories, which are further broken down into descriptive, correlational, true experimental, and quasi-experimental research.

💡Non-Experimental Research

Non-experimental research is a type of study where the researcher observes and collects data without manipulating variables or introducing any interventions. The script explains that this type of research includes descriptive and correlational research, allowing the researcher to describe situations or phenomena and study relationships between variables without interference.

💡Descriptive Research

Descriptive research aims to describe the characteristics of a population or phenomenon. It is used to determine the frequency of occurrences and general attributes of the current situation. In the script, an example is given where descriptive research could be used to find out how many senior high school students spend time playing online games, illustrating its application in understanding behaviors or conditions.

💡Correlational Research

Correlational research investigates the relationships between variables without necessarily establishing causality. It measures the strength and direction of the relationship. The video script provides examples such as the relationship between mathematics performance and scores in practical research, and how factors like sex and mathematical ability, age and leadership style might correlate.

💡Positive Correlation

A positive correlation indicates that as one variable increases, the other variable also increases, or as one decreases, the other decreases as well. The script uses the example of family income and daily allowance to illustrate a positive correlation, where an increase in family income might lead to an increase in daily allowance.

💡Negative Correlation

Negative correlation is the opposite of positive correlation, where an increase in one variable results in a decrease in the other. The script mentions the relationship between playing online games and GPA as an example of negative correlation, suggesting that more time spent on games could lead to a lower GPA.

💡Experimental Research

Experimental research is a method that involves manipulating variables to establish cause-and-effect relationships. The script explains that this type of research is high in causal validity and includes hypothesis testing, statistics, and probability. It is divided into true experimental and quasi-experimental research.

💡True Experimental Research

True experimental research is characterized by random assignment of subjects to treatment conditions, manipulation of variables, and the testing of cause-and-effect relationships. The video script describes it as having the highest internal validity of all research designs and provides examples such as using an independent video learning tool to test its effect on academic performance.

💡Quasi-Experimental Research

Quasi-experimental research is similar to true experimental research but lacks random assignment of subjects. The script explains that in quasi-experimental research, some subjects receive interventions, but the assignment is not random, which can affect the internal validity of the study.

💡Intervention

In the context of the video, intervention refers to the introduction of a treatment, program, or strategy by the researcher to observe its effects on the study's variables. Intervention is a key aspect of both true and quasi-experimental research, as it allows for the testing of hypotheses and the establishment of cause-and-effect relationships.

💡Internal Validity

Internal validity is the degree to which a study's design and execution allow for confident conclusions about the cause-and-effect relationship between variables. The script mentions that true experimental research offers the highest internal validity because of its ability to control for extraneous variables through random assignment and manipulation of treatments.

Highlights

Quantitative research is divided into non-experimental and experimental types.

Non-experimental research includes descriptive and correlational research.

Descriptive research focuses on describing characteristics without manipulation of variables.

Descriptive research is used for surveys, such as the impact of online gaming on academic performance.

Correlational research investigates relationships between variables without implying causation.

Positive and negative correlations are explained with examples.

Experimental research aims for high causal validity with hypothesis testing and statistical analysis.

True experimental research is characterized by random group formation and treatment manipulation.

One-group post-test design is used to measure the effect of an intervention.

Two-group post-test design includes both experimental and control groups.

Pre-test and post-test design involves both groups being measured before and after an intervention.

Quasi-experimental research is similar to true experimental but lacks random subject assignment.

The importance of random selection in maintaining internal validity is emphasized.

The video provides examples of how different research designs can be applied in educational settings.

The video concludes with an encouragement to like, subscribe, and stay updated for more tutorials.

The video guide aims to support learning in the field of research methodology.

The video discusses the impact of the COVID-19 pandemic on current events and scenarios in research.

The transcript highlights the importance of understanding different types of quantitative research for academic and practical applications.

Transcripts

[Music]

hello mahakawamat in this video lesson

we will discuss the types of

quantitative research but before we

proceed to our discussion don't forget

to like our videos and subscribe nko

quantitative researches are classified

into non-experimental and experimental

so maritime delaware classic and

quantitative research

first is the non-experimental at the

second experimental

under non-experimental research maritime

descriptive research

and correlational research

and under experimental research

through experimental and

quasi-experimental

patented

non-experimental research this kind of

research

allows the researcher to either describe

a situation or phenomenon or the

relationship between two or more

variables without any interference from

the proponent so ma'ariton current

events or scenarios

online class distance learning at young

about covet 19.

in non-experimental research the

researchers collect data without making

changes or introducing treatments so in

non-experimental research

intervention suppressing abby nothing

intervention

innovation program or strategy

interventions and non-experimental

research

there are two major kinds of

non-experimental research first is the

descriptive research

it deals with describing the nature

characteristics and components of the

populations or a phenomenon

manipulation of variable or search for

cause and effect is not applicable in

relating to the phenomenon and this

design attempts to determine the

frequency with which it occurs and find

general attributes of the presently

existing situation

current events or um trending social

issues and then manipulation of

variables is not applicable so indeed

experimental research

a descriptive research is more in survey

so for example descriptive research is

used for if you want to know

how many are senior high school students

spent in playing online games

another how many mile north students who

failed in the achievement test

and

how healthy is the food served during

lunch time in the public school so it is

factors affecting the academic

performance of senior high school

students so young word no factors

possible factors

academic performance

attendance

family

financial support

working student

and environment so i'm gonna win landito

maxis cerveza

another kind of non-experimental

research is the correlational research

it is primarily concerned with an

orderly systematic investigation of the

nature of relationships or associations

between the among variables without

necessarily investigating into casual

reason underlying them

furthermore it is also concerned with

the extent of relationships that exist

between or among the variables so this

research design is to measure the

strength of the relationship between two

variables

for example

the performance in mathematics and the

score in practical research too if per

poor months in mathematics can be used

to predict performance then the higher

the mathematics grade the higher most

likely be the score in practical

research too correlational research in

employed if you like to know for example

if the following factors are related to

each other

sex and mathematical ability

age and leadership style

and the occupation and the life span so

between the relationship of two

variables

the different types of correlation so

first is positive correlation an

increase in one variable

needs to increase the other variable a

decrease in one variable will also

decrease in the other variable so for

example

family income and daily allowance

and so

foreign

another type of correlation is the

negative correlation so

it is a positive correlation at the end

because a positive correlation

some variable to mata

it is a negative correlation capacity is

some variable to mata axiom

other variable

so opposite of

positive correlation

about correlational so the relationship

between playing online games and the

great point of raids so many times

variable detail your online games and

gpa so sinus

relationship

let's say

foreign another kind of quantitative

research is the experimental research so

this kind of research is centrally

concerned with constructing research

that is high in causal validity so

pakistan

and then scientific approach

pakistan scientific approach it involved

hypothesis testing

attends statistics and probability so

hypothesis testing apply nothing details

experimental research

researchers collect data with making

changes or introducing treatments so

non-experimental research

intervention data's experimental

research mega meeting intervention or

mega meeting time strategy mate

intestine strategy program or innovation

so there are two major kinds of

experimental research first is the true

experimental

so this kind of research can be

identified by three characteristics

first is the randomly formed groups so

it's a experimental or true experimental

research ginagawa

respondents

second manipulation of the treatment so

dito namitiya tower time experimental

groups and

the main purpose of this research is to

test the true cause and effect

relationship

of variables involved in the study

so

according to prieto

it offers the highest internal validity

of all the designs

so

uh

research design intro experimental so

maintain a tower time one group post

test only design so panetto ginagawa in

one group posters only design a single

group of individuals is measured in some

dependent variable after an intervention

has taken place so for example

independent sourcing title and research

independent video learning tool its

effect on academic performance of senior

high school students sopa ano natan

gagawin young research network using one

group post-test design first of course

uh

responded

in a show

we begin machining intervention and

afternoon intervention bibi gel music

posters

another design is the two groups post

test only design so hong konina is

and then maritime control group so pan

and not in gaga when you

research nathan using this uh

intervention so your intervention attend

using the independent vigil learning

tool

so first after

my

uh maybe intervention

both experimental and control group

so

nothing on

so another design is the pre-test

post-test design

the experimental and control group again

it's a true experimental research class

randomly

respondents

select no respondents randomly

so the one groupo

again my experimental group at control

group

so both bibi genetic pretest from the

start

so simula

no study nothing began

both experimental and control group then

after an elan magpre test

he applied nothing in an intervention so

young intervention i don't know any app

like experimental

another kind of experimental research is

the quasi-experimental

this kind of research is almost the same

as that of true experimental design the

only difference is the absence of random

assignment of subject to other

conditions so detox meron kang target

experimental and through experimental

research

is that some subjects receive

interventions

through experimental

experimental so both subject we began

music intervention so again

[Music]

randomly

so i sang halimbawa namkwasa

experimental research the effect of

remedial program to beginners

thank you for watching this video i hope

you learned something

don't forget to like subscribe and hit

the bell button put updated ko for more

video tutorial this is your guide in

learning your mod lesson your walmart

channel