Data Source Reliability Evaluation

Name:

Date:

📊 Part 1: Evaluating Data Sources

1. For each data source below, rate its reliability by selecting one option:

A. School Instagram Poll about Favourite Subjects

Very Reliable

Somewhat Reliable

Not Reliable

B. Stats NZ Census Data from 2023

Very Reliable

Somewhat Reliable

Not Reliable

C. Your Own Survey of 50 Classmates

Very Reliable

Somewhat Reliable

Not Reliable

2. For the following data collection scenario, check ALL potential issues:

A student surveys their 5 best friends about study habits during lunch break

Sample size too small

Biased sample selection

Poor timing of survey

Limited demographic range

3. What makes Stats NZ data more reliable than a social media poll? List two reasons:

4. When collecting your own data (primary source), what THREE things should you consider to ensure reliability?

5. EXTENSION: Design a brief checklist for evaluating data quality. Include at least 4 criteria:

□ _____________________________________________