The first blank would be strengthening and the second blank is weakening. Negative reinforcement can increase the child's behavior because your negative reinforcement conditions him that it is ok to do such thing. While positive punishment is disregarded when the person practices negative reinforcement,
Answer:
Correlation or experimental
Explanation:
Researching abnormal behaviors may be correlational or experimental. There are few ethical concerns bothering on research in psychopathology. Magnitude and sample size play a very important role here. Sample size need to be very large to be significantly correlated. Correlational factors are examined as they are currently. Experimental research involves manipulating one variable and taking note of the effect on another variable.
Price ceilings a situation when the price charged is more than or less than the equilibrium price determined by market forces of demand and supply. I hope this answer helps and mark as brainliest.