A neuron just sent a neural impulse.It will be one to two milliseconds before another neural impulse can be generated.What do we call this brief time increment,when another neural impulse cannot occur

A)  resting potential 
B)  absolute refractory period 
C)  postsynaptic discharge 
D)  all-or-none period

With regard to correlational research,which of the following is true?

A) Correlational evidence provides stronger evidence about cause and effect than does quasi-experimental evidence.
B) A correlation coefficient of −.32 reflects a stronger degree of relation than a correlation coefficient of +.30.
C) Correlational studies involve independent samples.
D) all of these

Which factor leads to increased respect for assessment and diagnosis?

A) The ability to identify disorders without assessment
B) More global and less precise DSM-5 categories
C) Increased assessment research
D) Decreased emphasis on clinical studies involving "real" patients