What's the difference between INTERNAL and EXTERNAL VALIDITY?

The video tutorial explains the concept of validity in scientific experiments, focusing on internal and external validity. Internal validity ensures that a study tests what it claims to test, while external validity concerns the generalizability of results. The video uses Stanley Milgram's obedience study as an example to illustrate these concepts. It discusses the importance of controlling confounding variables and ensuring mundane realism for internal validity, and highlights ecological, population, and historical validity as aspects of external validity. The video concludes with a call to action for viewers to engage with the content.

What is the primary goal of scientific experimentation?

• To collect as much data as possible

• To create new scientific theories

• To prove that A causes B with high confidence

• To disprove existing hypotheses

What does internal validity focus on in a study?

• The generalizability of the results

• The accuracy of the data collection methods

• The control of confounding variables within the study

• The historical context of the study

Why is mundane realism important in psychological studies?

• It ensures the study is conducted in a natural setting

• It helps in understanding real-world behavior

• It reduces the cost of conducting the study

• It increases the sample size of the study

What is ecological validity concerned with?

• The statistical methods used in the study

• The diversity of the participant pool

• The time period in which the study was conducted

• The environment where the research took place

How does population validity affect a study?

• It determines the study's relevance to different time periods

• It assesses the study's applicability to different populations

• It evaluates the study's environmental conditions

• It measures the study's internal consistency

What does historical validity examine in a study?

• The study's ethical considerations

• The study's relevance across different cultures

• The study's applicability over time and historical eras

• The study's accuracy in data collection

What is the relationship between internal and external validity?

• They are unrelated and independent

• They are inversely proportional

• They are often interconnected, with weaknesses in one affecting the other

• They are only relevant in psychological studies