Practical Research 1 - Quantitative Research

Fill-in-the-blank flashcards covering key concepts from the lecture notes on Quantitative Research (types, reliability/validity, generalization, and examples).

Quantitative research utilizes reasoning to generate predictions that are tested in the real world.

deductive

Quantitative research usually starts with a theory or about the relationship between two or more variables.

hypothesis

Data in quantitative research are gathered using instruments and results are based on large sample sizes.

structured

Quantitative research collects data to explain a phenomenon and analyze with statistical procedures.

numerical

The quality of research that refers to the consistency, stability, and repeatability of findings is called .

Reliability

Validity in research concerns the extent to which a study accurately what it intends to measure.

measures

Generalization in quantitative research refers to extending findings from a sample to a population or to other settings.

larger

Descriptive research aims to provide a detailed and accurate of a phenomenon.

description

Correlational research focuses on exploring and measuring the between two or more variables.

relationship

Quasi-experimental research lacks one or more key elements of true experimental research; an identified variable is not manipulated.

independent

In quasi-experimental studies, researchers compare experimental groups to the groups.

control

Experimental research involves manipulating the variable to determine its effects on the dependent variable.

independent

In experimental research, participants are randomly assigned to groups instead of being identified in naturally occurring groups—a process called assignment.

random

A pre-test is administered before the intervention to establish a baseline .

performance level

A post-test after the intervention measures changes in the participants' .

achievement

Pearson's correlation coefficient ranges from -1 to 1, where 0 indicates .

no correlation

In correlational research, the coefficient indicates the and direction of the relationship between variables.

degree

The sleep-deprivation study is an example of research, where the independent variable is manipulated to observe its effects on the dependent variable.

experimental

In experimental research, manipulation of the independent variable helps establish causal between variables.

relationships

The process of extending research findings from a sample to a larger population is called .

generalization

A major advantage of quantitative research is that it allows researchers to measure and analyze data to arrive at an answer.

objective

Disadvantages of quantitative research include that results may be limited because numbers and closed-ended instruments may miss data.

narratives

Descriptive quantitative research focuses on summarizing numerical data to describe a phenomenon.

particular

The exercise frequency and stress levels study uses to analyze the relationship.

Pearson's