diff --git a/R/split_responses.R b/R/split_responses.R
index d51c446..173c5cf 100644
--- a/R/split_responses.R
+++ b/R/split_responses.R
@@ -16,8 +16,19 @@
 #' @export
 split_responses <- function(responses) {
   ensure_columns(responses, "item_id", stop, "Cannot split responses. ")
-  surveys <- stringr::str_detect(responses[["item_id"]], "^(?:Pre|Post)survey_")
-  quizzes <- stringr::str_detect(responses[["item_id"]], ".*_Practice_Quiz.*")
+  surveys <- survey_item_map(responses)
+  quizzes <- quiz_item_map(responses)
   groups <- ifelse(surveys, "surveys", ifelse(quizzes, "quizzes", "in_text"))
   split(tibble::as_tibble(responses), groups)
 }
+
+
+survey_item_map <- function(responses) {
+  item_map_lower <- stringr::str_to_lower(survey_item_references[["item_id"]])
+  stringr::str_to_lower(responses[["item_id"]]) %in% item_map_lower
+}
+
+
+quiz_item_map <- function(responses) {
+  stringr::str_detect(responses[["item_id"]], ".*_Practice_Quiz.*")
+}
diff --git a/R/sysdata.rda b/R/sysdata.rda
new file mode 100644
index 0000000..9c99812
Binary files /dev/null and b/R/sysdata.rda differ
diff --git a/data-raw/survey_item_references.r b/data-raw/survey_item_references.r
new file mode 100644
index 0000000..b1af41e
--- /dev/null
+++ b/data-raw/survey_item_references.r
@@ -0,0 +1,8 @@
+survey_item_references <- read.csv('./data-raw/survey_item_references.csv', na.strings = c("", "NA"))
+
+logicals <- stringr::str_starts(names(survey_item_references), 'included_v')
+survey_item_references[logicals] <- lapply(survey_item_references[logicals], as.logical)
+
+survey_item_references[!logicals] <- lapply(survey_item_references[!logicals], as.character)
+
+usethis::use_data(survey_item_references, internal = TRUE, overwrite = TRUE)
diff --git a/tests/testthat/test-split_responses.R b/tests/testthat/test-split_responses.R
index 521329e..3ca0482 100644
--- a/tests/testthat/test-split_responses.R
+++ b/tests/testthat/test-split_responses.R
@@ -1,6 +1,6 @@
 mock_responses <- tibble::tibble(
   item_id = c(
-    "Presurvey_101_other_text", "Postsurvey_101_other_text",
+    "Presurvey_0719_Student_Background", "Postsurvey_0719_Attitudes", "Embedded_0719_Value",
     "Ch1_Practice_Quiz", "Ch6_Practice_Quiz_2",
     "literally", "anything", "else"
   )
@@ -22,16 +22,16 @@ test_that("response tables missing required columns throw informative errors", {
   )
 })
 
-test_that("pre- and post- survey items end up in surveys", {
-  expect_identical(split$survey, mock_responses[1:2, ])
+test_that("survey items end up in surveys", {
+  expect_identical(split$survey, mock_responses[1:3, ])
 })
 
 test_that("practice quiz items end up in quizzes", {
-  expect_identical(split$quizzes, mock_responses[3:4, ])
+  expect_identical(split$quizzes, mock_responses[4:5, ])
 })
 
 test_that("all other items end up in in_text", {
-  expect_identical(split$in_text, mock_responses[5:7, ])
+  expect_identical(split$in_text, mock_responses[6:8, ])
 })
 
 test_that("all responses are accounted for", {