If I didn't know what the findings were, and if I looked merely at the graph in Fig. 6 of the BMJ article, I'd say that higher lexical scores in younger years correlate with higher declines in that same score.
Does abstinence correlate with lower scores? I don't understand the three different starting points. I was expecting a normalized score (~20) with several different levels of decline.
Comments
If I didn't know what the findings were, and if I looked merely at the graph in Fig. 6 of the BMJ article, I'd say that higher lexical scores in younger years correlate with higher declines in that same score.
Does abstinence correlate with lower scores? I don't understand the three different starting points. I was expecting a normalized score (~20) with several different levels of decline.