Identify the longitudinal design :
identify the population of inmates housed at SCI Pine Grove. I then draw a new sample from this population four times over the course of the next year asking about their perceptions of safety within the prison.
panel
repeated cross section
lentify the population of inmates housed at SCl Pine Grove.I then draw a new sample from this population four times over the course of the next year asking about their perceptions of safety within the prison. panel repeated cross section