That inhibitory postsynaptic potentials (IPSPs) and excitatory postsynaptic potentials (EPSPs) differ in amplitude and kinetics is a foundational physiological fact regarding synaptic potentials, requiring no citation.
The claim states that IPSPs and EPSPs differ in amplitude and latency (kinetics). This is basic neurophysiology (EPSPs depolarize via glutamate/AMPA/NMDA, moving toward threshold, while IPSPs hyperpolarize or shunt via GABA, moving away from threshold). It is a matter of common definition and everyday observation in neurobiology. Per instructions, common knowledge claims receive no citation and the verdict is set to COMMON_KNOWLEDGE.