Which of the following is a common symptom of schizophrenia?

Impaired executive functioning is indeed a common symptom of schizophrenia. This cognitive disruption manifests as difficulties in planning, organizing, problem-solving, and maintaining attention. It can impact a person's ability to manage daily tasks and process information effectively. In schizophrenia, this impairment often affects their ability to carry out goals and respond appropriately in social situations.

In contrast, symptoms such as consistent high energy, rapid weight gain, and perfect social skills do not align with typical presentations of schizophrenia. High energy is more commonly associated with mood disorders such as mania, while rapid weight gain is not inherently a symptom of schizophrenia but could be a side effect of certain antipsychotic medications. Perfect social skills are atypical for individuals with schizophrenia, as this disorder often includes social withdrawal and dysfunction in interpersonal relationships. Thus, impairments in executive functioning stand out as a defining feature of the cognitive challenges faced by those with schizophrenia.