diff --git a/data-raw/lifespan.R b/data-raw/lifespan.R
index 8142283..735d768 100644
--- a/data-raw/lifespan.R
+++ b/data-raw/lifespan.R
@@ -105,7 +105,7 @@ lifespan <- tibble(
     ),
     item_bias = item_bias[test],
     lambda = loadings[test],
-    nu = retest_effect + item_bias + eta * lambda
+    nu = retest_effect + item_bias - eta * lambda
   ) %>%
   select(-zeta2, -zeta3, -eta, -retest_effect, -item_bias, -lambda) %>%
   rowwise() %>%
diff --git a/data/lifespan.rda b/data/lifespan.rda
index d15e789..9726d83 100644
Binary files a/data/lifespan.rda and b/data/lifespan.rda differ
diff --git a/src/RcppExports-c3165af9.o.tmp b/src/RcppExports-c3165af9.o.tmp
new file mode 100644
index 0000000..e69de29