WEEK 5 - QUANTITATIVE RESEARCH Flashcards
1
Q
How and why is quantitative research done?
A
2
Q
What are the major quantitative research designs?
A
3
Q
What is the role of consistent and accurate measurement in quantitative research and healthcare?
A
4
Q
What are the two main types of quantitative research design?
A
- Intervention studies
- Observation studies
5
Q
What is an intervention study
A
- Researchers actively introduce or modify an intervention (such as a treatment, drug, or procedure) and measure its effects on outcomes. These studies are experimental because the researcher controls the exposure to the intervention.
- Experimental designs provide better evidence about causes and effects.
- A non‐experimental study that is also an intervention study is called a case series.
6
Q
What is an observation study
A
- There are no deliberate treatments. Researchers allow events to happen naturally.
- Conducted when interventions are impractical or unethical.
- These studies are non-experimental, relying on naturally occurring circumstances.
7
Q
What is descriptive research
A
- Describes a sample and compares groups within a sample on their characteristics or opinions.
8
Q
What is a diagnostic accuracy research
A
- Has looked for interesting and innovative ways to detect serious health conditions.
9
Q
Diagnostic Accuracy Research
A
- Purpose: To identify the cause or nature of a condition or disease.
- Example: A study to determine whether a new medical test can accurately detect a specific illness, like diagnosing diabetes with a new blood test.
- Goal: To assess the effectiveness or accuracy of a test or tool in identifying a problem
10
Q
Descriptive Research:
A
- Purpose: To describe characteristics or behaviors of a population or situation.
- Example: A study that reports how many people in a community have high blood pressure or describes their age, gender, and lifestyle habits.
- Goal: To provide a snapshot or detailed account of something without trying to explain causes or relationships.
11
Q
What are the 4 main levels of measurement
A
- nominal
- ordinal
- discrete
- ratio
12
Q
What is an independent variable
A
- refers to the treatment and control or placebo conditions.
13
Q
What is a dependent variable
A
- refers to the outcome measure, and could be categorical (e.g., patient’s condition improved or did not improve) or continuous (e.g., measures on a pain scale).
14
Q
What is reliability?
A
- refers to consistency over repeated measurements, getting the same result from multiple measurements of an unchanging category or amount.
- measurements taken from the same unchanging person or thing are stable over repeated observations.
15
Q
What are the 4 types of reliability?
A
Intra- rater
Inter rater
Te-retest
Alternate or Parallel forms
