How many HITs per year?

Basic info about workers

semi_distinct_workers <- anonyhits %>%
  select(UUID, HITcount, Sex, Race, Ethnicity) %>%
  distinct()
nrow(semi_distinct_workers)

## [1] 14571

distinct_workers <- anonyhits %>% 
  select(UUID, HITcount, Sex, Race, Ethnicity, Experiment, Experimenter) %>% 
  distinct(UUID, HITcount, .keep_all = TRUE) %>% 
  mutate(Sex = Sex %>% replace_na("Unknown"),
         Ethnicity = Ethnicity %>% replace_na("Unknown"))
nrow(distinct_workers)

## [1] 13603

Sex breakdown

Ethnicity breakdown

Race breakdown

How many HITs do Turkers do?

Not many on average

Your median worker does one HIT for us ever, but there are some crazies who have done a ton.

summary(distinct_workers$HITcount)

##     Min.  1st Qu.   Median     Mean  3rd Qu.     Max. 
##    1.000    1.000    1.000    3.668    2.000 1506.000

How does when they first did a HIT effect how many they do?

Turns out that workers from the first two years (when we often split HITs into chunks of one to four trials) drive most of the deviation from doing < 10.

##     Min.  1st Qu.   Median     Mean  3rd Qu.     Max. 
##   0.0500   0.6667   2.8500   9.3701  14.0167 116.0833

## Warning: Removed 6 rows containing non-finite values (stat_boxplot).