PSY 201Z Exam 1 Review

Front

What is the primary purpose of using a double-blind procedure in an experiment?

Back

To prevent both the participants and the researchers from knowing who is in the control or experimental group, reducing bias.

Front

A correlation coefficient of r = -0.23 shows a low ______________ correlation between 2 variables.

Back

negative

Front

Which part of the neuron receives signals from other neurons?

Back

Dendrites

Front

Makes decisions, plans, reasons, and carries out behaviors

Back

Frontal Lobe

Front

What is the main focus of cognitive psychology?

Back

How people perceive, remember, think, speak, and solve problems.

Front

What is the function of the axon in a neuron?

Back

To transmit electrical impulses away from the cell body to other neurons.

Front

Define 'neurotransmitter'.

Back

Chemical messengers that transmit signals across a synapse from one neuron to another.

Front

What is the role of the myelin sheath?

Back

To insulate axons and increase the speed of neural transmission.

Front

What does the term 'operational definition' mean in research?

Back

A clear, precise definition of a variable that allows it to be measured.

Front

What is the difference between independent and dependent variables?

Back

Independent variables are manipulated by the researcher, while dependent variables are measured to assess the effect of the independent variable.