Quantitative Research

Qualitative Research

A Theory

Hypothesis

Variable

Continuous Variable

Categorical Variable

Standardised Procedures

Population

Sample

Generalisability

Sampling Bias

Internal Validity

External Validity

Measure

Reliability

Retest reliability

Internal consistency

Interrater Reliability

Validity

Scientific approach

Description (Scientific Approach)

Prediction (scientific approach)

Understanding (Scientific approach)

experimental research

Control group

Descriptive research

case study

Naturalistic Observation

Survey research

Random/Stratified Random samples

Correlational research

Correlation coefficient

objectivity