Data & Sampling

Categorical data includes

• Nominal and interval

• Interval and ratio

• ordinal and interval

• Nominal and ordinal

Another name for continuous data

• Categorical data

• Numeric data

• Nominal data

• Ordinal data

Stratified sampling means

• Select sample from all strata proportionally

• Select sample from one strata only

• Use lottery method

• Conveniently select sample

Finding respondents as a chain ( from one respondent to another) is known as

• Purposive sampling

• Snowball sampling

• Cluster sampling

• Quota sampling

Spss is used for