The current thinking is that although around 1.5 to 3.5% of people will meet diagnostic criteria for a psychotic disorder, a significantly larger, variable number will experience at least one psychotic symptom in their lifetime.
The cited study is a survey of 7076 people in the Netherlands, which mentions:
1.5% sample prevalence of “any DSM-III-R diagnosis of psychotic disorder”
4.2% sample prevalence of “any rating of hallucinations and/or delusions”
17.5% sample prevalence of “any rating of psychotic or psychosislike symptoms”
It is quite high:
The cited study is a survey of 7076 people in the Netherlands, which mentions:
1.5% sample prevalence of “any DSM-III-R diagnosis of psychotic disorder”
4.2% sample prevalence of “any rating of hallucinations and/or delusions”
17.5% sample prevalence of “any rating of psychotic or psychosislike symptoms”