WEEK FOUR

Question 1

Quantiative reseach is?

Answer 1

• Partical picture of phenomena interest
• Objective
• Numerical information
• Researcher is at arms length from data collection process
• Validity has a specific meaning

Question 2

Observational is a type of quantitative research design that includes?

Answer 2

• Descriptive: describes variables
• Correlational: examines relationships between variables
• Cross-sectional: examines variables between realtionships at point in time
• Retrospective: retraces participants with an outcome backwards to a possile exposure
• Case control: cases matched to control
• Cohort: follows partcipants from exposure to outcome
• Longitudinal: repeated measurements of participants over time

Question 3

Quasi-experienmental design includes?

Answer 3

-Experimental treatment manipulated
-Natural experiment
-Some characteristic of true experiment missing:
Control or randomisation

Question 4

Experimental design includes?

Answer 4

-Involves observation and data collection with specific criteria and protocol
-Used to test cause and effect relationships
-Three identifiying properties: Randomisation, Control, Manipulation
-Randomised controlled trials (RCT’S)
-Blinded RCT
Double blinded RCT

Question 5

Exam

What are three major factors/identifying properties in an experimental design?

Answer 5

Randomisation
Control
Manipulation

Question 6

What is retrospective?

Answer 6

Data collected about past events

Question 7

What is prospective?

Answer 7

Data collected about events as they occur

Question 8

Control in Quantitative Research:

Answer 8

• Researcher needs to have control over study
• Procedures to ensure uniform/constant condition
• Control over variables

Question 9

What is variable?

Answer 9

Aspect of interest that differs among different people/situation

Question 10

Independent Variable is?

Answer 10

Manipulated

Question 11

Dependent Variable is?

Answer 11

Measured

Question 12

Extraneous Variable is?

Answer 12

Needs to be controlled

Question 13

Validity?

Answer 13

-Study is valid if it measures what it claims to measure
-Measurement instrument accuratley measure what its meant to measure
Internal: Accurately measures
External: Generalisable

Question 14

Hierachies or evidence

Answer 14

• Traditionally based on quantitative methods
• Minimise bias and remove effect of confounding variables
• Systemative reviews of RCT’S at top
• Opionion at bottom

Question 15

The appropriate research design is one that?

Answer 15

will best answer the research question