Which Item Is a Potential Source of Internal Invalidity

question 95

Multiple Choice

Which item is a potential source of internal invalidity?

• A) passage of time
• B) inconsistent findings across different groups of participants
• C) observer disagreement
• D) conflicting scores on multiple test days

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Definitions:

Psilocybin

A naturally occurring psychedelic compound produced by more than 200 species of fungi, known for its psychoactive properties.

MDMA

A synthetic drug that alters mood and perception, known for its stimulant and hallucinogenic effects.

Sleep Age

A non-standard term that may refer to the concept of quantifying the effects of sleep on biological aging or perceived age due to sleep quality.

Infancy

The early stage of a human's life, extending from birth to toddlerhood, characterized by rapid growth and development.