If I am going to use the IES-R scale for 2018 flood-affected individuals in 2020, whether can I get valid results (I am not talking about it's validity here). Because I am measuring the impact nearly one and half years after the flood. This scale starts with DURING THE PAST SEVEN DAYS. My question is whether to use within 7 days after the event/disaster took place or can I use now also. Please clarify this.