Types of experiment

Lab experiments:

Lab studies are conducted in highly-controlled environments.

The researcher manipulates the IV and records the effect on the DV.

Strengths:

• Lab experiments have high control over extraneous and confounding variables, allowing the researcher to illustrate a cause and effect relationship. This leads to high internal validity.
• Easy to replicate. This makes it easier to check the validity.

Weaknesses:

• They have low external validity due to the environment being artificial.
• They lack generaliseability for the same reason.
• They have low mundane realism as tasks are rarely realistic day-to-day tasks.

Field experiments:

Field experiments take place in a natural setting.

The researcher manipulates the IV and records…