Distinguish Between Random Assignment and Random Selection

question 32

Essay

Distinguish between random assignment and random selection. Which is relevant to internal validity and which is relevant to external validity? Explain.

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Definitions:

Lewin

Kurt Lewin was a pivotal figure in psychology who is often considered the father of social psychology; he introduced concepts such as field theory and the change management theory known as unfreeze-change-refreeze.

Petty Annoyances

Minor irritations or inconveniences that can lead to frustration or discomfort, though not significantly affecting one's overall wellbeing.

Irritations

Irritations are minor annoyances or discomforts that can cause frustration or anger, often resulting from environmental factors or interpersonal interactions.

Hassles

Minor irritations and annoyances that are part of everyday life and can accumulate to cause stress.