5.1 External validity threats | Quantitative methods | Sampling | UvA

This video discusses different threats to external validity: history threat, setting threat (pretesting and reactivity) and selection threat. You also learn what you can do to reduce these threats to external validity.


This course consists of six modules and each module has several videos. To find the right module, go to our account @Research Methods and Statistics and click on Playlists, or view them below.

MODULE 5: Sampling
5.1 External validity threats: https://www.youtube.com/watch?v=eNPz6lIV7fA&list=PLyLpEs0x9BnmPTE2RRRJW058Nf7R_2xQa&index=1
5.2 Sampling concepts: https://www.youtube.com/watch?v=15UxDwpIIig&list=PLyLpEs0x9BnmPTE2RRRJW058Nf7R_2xQa&index=2
5.3 Probability sampling: https://www.youtube.com/watch?v=Jd-KqGDaJ3o&list=PLyLpEs0x9BnmPTE2RRRJW058Nf7R_2xQa&index=3
5.4 Probability sampling - simple random and systematic: https://www.youtube.com/watch?v=hhkxRfxdX58&list=PLyLpEs0x9BnmPTE2RRRJW058Nf7R_2xQa&index=4
5.5 Probability sampling - complex types: https://www.youtube.com/watch?v=WakK8Wzmw6o&list=PLyLpEs0x9BnmPTE2RRRJW058Nf7R_2xQa&index=5
5.6 Non-probability sampling: https://www.youtube.com/watch?v=TtcCvy-CKLc&list=PLyLpEs0x9BnmPTE2RRRJW058Nf7R_2xQa&index=6
5.7 Sampling error: https://www.youtube.com/watch?v=yKr9w4e8eSw&list=PLyLpEs0x9BnmPTE2RRRJW058Nf7R_2xQa&index=7
5.8 Non-sampling error: https://www.youtube.com/watch?v=5a_cf21f6N4&list=PLyLpEs0x9BnmPTE2RRRJW058Nf7R_2xQa&index=8
5.9 Sample size: https://www.youtube.com/watch?v=QHzMPzHQgEg&list=PLyLpEs0x9BnmPTE2RRRJW058Nf7R_2xQa&index=9


QUANTITATIVE METHODS: MODULES
1. Origins of Science: https://www.youtube.com/watch?v=ROQME6VOipc&list=PLyLpEs0x9BnmB24Tt75G84_Ve4tZlPIUW
2. The Scientific Method: https://www.youtube.com/watch?v=D8N1I-FmMvU&list=PLyLpEs0x9BnlIlaK5LnaRRZvKKJtSgM3P
3. Research Designs: https://www.youtube.com/playlist?list=PLyLpEs0x9Bnmb9IoStBHFc_1DR9tDERrw
4. Measurement: https://www.youtube.com/playlist?list=PLyLpEs0x9BnnG2hAwOQaZNwl7yTeUBMnL
5. Sampling: https://www.youtube.com/playlist?list=PLyLpEs0x9BnmPTE2RRRJW058Nf7R_2xQa
6. Practice, Ethics and Integrity: https://www.youtube.com/playlist?list=PLyLpEs0x9Bnk617_N7sa3_cn5bmCK6wh0

Follow our account @Research Methods and Statistics for more modules and courses!