A Null Research Hypothesis Predicts That

question 13

Multiple Choice

A null research hypothesis predicts that:

• A) variables will be found to be related, but in an unknown direction.
• B) variables will found to be unrelated.
• C) variables will be found to be related and in a certain direction.
• D) variables will not be found to be related in a research sample, but they are related in the population from which it was drawn.

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Definitions:

Specialized Cells

Cells that have developed unique characteristics and functions to perform specific tasks within an organism.

Sensory Neurons

Nerve cells responsible for converting external stimuli from the environment into internal electrical impulses for the brain to interpret.

Synapses

The junctions through which neurons communicate with other neurons, muscle cells, or gland cells.

Absolute Thresholds

The minimum stimulus energy needed to detect a particular stimulus 50% of the time.