Major Threats to Validity in a "Pretest & Posttest with One

question 4

Multiple Choice

Major threats to validity in a "pretest & posttest with one experimental group only" are:

• A)History,maturation,main testing,interactive testing,mortality.
• B)Statistical regression,maturation,main testing,interactive testing,mortality.
• C)Statistical regression,instrumentation,main testing,interactive testing,mortality.
• D)History,instrumentation,main testing,interactive testing,mortality.

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Definitions:

Volcanic Eruptions

The release of magma, ash, and gases from a volcano, a geological process that can significantly alter the surrounding landscape.

Prehistoric Earthquakes

Earthquakes that occurred before recorded history, evidenced through geological formations and studies.

Seismic Recording Stations

Facilities equipped with sensitive instruments used to detect and record earthquakes and other ground vibrations.

Interferogram

The combining of satellite mapping images taken of a place at two different times to compare changes in the land surface, for example, during an earthquake.