Unit 1 and Unit 0 Terms

Which of the following is a variable that is manipulated in an experiment?

• Dependent variable

• Independent variable

• Confounding variable

• Qualitative data

Informed consent is crucial in research to ensure that participants are aware of the risks involved. True or False?

• True

• False

Fill in the blank: The measure of central tendency that is the middle value in a data set is called the _______.

• A) Mean

• B) Median

• C) Mode

• D) Range

Which of the following terms describes a distribution with two different modes?

• Normal curve

• Bimodal distribution

• Positive skew

• Negative skew

Which of the following is a method of selecting a sample where every individual has an equal chance of being chosen?

• Convenience sampling

• Random sampling

• Representative sample

• Experimental group

In a double-blind study, who is unaware of the treatment being given?

• Only the participants

• Only the researchers

• Both the participants and the researchers

• Neither the participants nor the researchers.

A placebo is used in experiments to test the effect of a treatment. Fill in the blank: The phenomenon where participants experience changes simply because they believe they are receiving a treatment is known as the ________.

• A) Placebo effect

• B) Experimenter bias

• C) Social desirability bias

• D) Overconfidence

Which of the following is a study method used to understand the interaction of heredity and environment?

• Twin studies

• Reflex arc

• Sensory neurons

• Action potential

The central nervous system consists of the brain and the ______.

• Spinal cord

• Sensory neurons

• Glial cells

• Motor neurons

Which of the following is a neurotransmitter responsible for mood regulation?

• Dopamine

• Serotonin

• GABA

• Adrenaline