## ----setup, include = FALSE------------------
knitr::opts_chunk$set(
collapse = TRUE,
comment = "#>"
)
## ----vignette-setup, include=FALSE-----------
knitr::opts_chunk$set(echo = TRUE)
# Libraries necessary for this vignette
library(rio)
library(flextable)
library(dplyr)
library(tidyr)
library(psych)
library(reshape)
library(semanticprimeR)
set.seed(0329032)
## --------------------------------------------
DF <- import("data/montefinese_data.csv")
names(DF) <- make.names(names(DF),unique = TRUE)
names(DF)[names(DF) == 'ITEM..ITA.'] <- "item"
DF <- DF %>%
filter(StimType != "") %>%
filter(Measure == "Valence") %>% # only look at valence score
arrange(item) %>% #orders the rows of the data by the target_name column
group_by(item) %>% #group by the target name
transform(items = as.numeric(factor(item)))%>% #transform target name into a item
select(items, item, everything()
) #select all variables from items and target_name
head(DF)
## --------------------------------------------
metadata <- import("data/montefinese_metadata.xlsx")
flextable(metadata) %>% autofit()
## ----subset and restructure------------------
### create subset for REL+
DF_RELpos <- subset(DF, StimType == "REL+")
### create subset for REL-
DF_RELneg <- subset(DF, StimType == "REL-")
### create subset for UNREL
DF_UNREL <- subset(DF, StimType == "UNREL")
## ----compute se for REL+ and REL-------------
# individual SEs for REL+ condition
cutoff_relpos <- calculate_cutoff(population = DF_RELpos,
grouping_items = "item",
score = "Response",
minimum = min(DF_RELpos$Response),
maximum = max(DF_RELpos$Response))
SE1 <- tapply(DF_RELpos$Response, DF_RELpos$item, function (x) { sd(x)/sqrt(length(x)) })
SE1
cutoff_relpos$cutoff
# individual SEs for REL- condition
cutoff_relneg <- calculate_cutoff(population = DF_RELneg,
grouping_items = "item",
score = "Response",
minimum = min(DF_RELneg$Response),
maximum = max(DF_RELneg$Response))
SE2 <- tapply(DF_RELneg$Response, DF_RELneg$item, function (x) { sd(x)/sqrt(length(x)) })
SE2
cutoff_relneg$cutoff
# individual SEs for UNREL condition
cutoff_unrel <- calculate_cutoff(population = DF_UNREL,
grouping_items = "item",
score = "Response",
minimum = min(DF_UNREL$Response),
maximum = max(DF_UNREL$Response))
SE3 <- tapply(DF_UNREL$Response, DF_UNREL$item, function (x) { sd(x)/sqrt(length(x)) })
SE3
cutoff_unrel$cutoff
## ----power three different conditions--------
# sequence of sample sizes to try
nsim <- 10 # small for cran
samplesize_values <- seq(25, 300, 5)
# create a blank table for us to save the values in positive ----
sim_table <- matrix(NA,
nrow = length(samplesize_values)*nsim,
ncol = length(unique(DF_RELpos$item)))
# make it a data frame
sim_table <- as.data.frame(sim_table)
# add a place for sample size values
sim_table$sample_size <- NA
sim_table$var <- "Response"
# make a second table for negative -----
sim_table2 <- matrix(NA,
nrow = length(samplesize_values)*nsim,
ncol = length(unique(DF_RELneg$item)))
# make it a data frame
sim_table2 <- as.data.frame(sim_table2)
# add a place for sample size values
sim_table2$sample_size <- NA
sim_table2$var <- "Response"
# make a second table for unrelated -----
sim_table3 <- matrix(NA,
nrow = length(samplesize_values)*nsim,
ncol = length(unique(DF_UNREL$item)))
# make it a data frame
sim_table3 <- as.data.frame(sim_table3)
# add a place for sample size values
sim_table3$sample_size <- NA
sim_table3$var <- "Response"
iterate <- 1
for (p in 1:nsim){
# loop over sample size
for (i in 1:length(samplesize_values)){
# related positive temp variables ----
temp_RELpos <- DF_RELpos %>%
dplyr::group_by(item) %>%
dplyr::sample_n(samplesize_values[i], replace = T) %>%
dplyr::summarize(se1 = sd(Response)/sqrt(length(Response)))
# put in table
colnames(sim_table)[1:length(unique(DF_RELpos$item))] <- temp_RELpos$item
sim_table[iterate, 1:length(unique(DF_RELpos$item))] <- temp_RELpos$se1
sim_table[iterate, "sample_size"] <- samplesize_values[i]
sim_table[iterate, "nsim"] <- p
# related negative temp variables ----
temp_RELneg <-DF_RELneg %>%
dplyr::group_by(item) %>%
dplyr::sample_n(samplesize_values[i], replace = T) %>%
dplyr::summarize(se2 = sd(Response)/sqrt(length(Response)))
# put in table
colnames(sim_table2)[1:length(unique(DF_RELneg$item))] <- temp_RELneg$item
sim_table2[iterate, 1:length(unique(DF_RELneg$item))] <- temp_RELneg$se2
sim_table2[iterate, "sample_size"] <- samplesize_values[i]
sim_table2[iterate, "nsim"] <- p
# unrelated temp variables ----
temp_UNREL <-DF_UNREL %>%
dplyr::group_by(item) %>%
dplyr::sample_n(samplesize_values[i], replace = T) %>%
dplyr::summarize(se3 = sd(Response)/sqrt(length(Response)))
# put in table
colnames(sim_table3)[1:length(unique(DF_UNREL$item))] <- temp_UNREL$item
sim_table3[iterate, 1:length(unique(DF_UNREL$item))] <- temp_UNREL$se3
sim_table3[iterate, "sample_size"] <- samplesize_values[i]
sim_table3[iterate, "nsim"] <- p
iterate <- iterate + 1
}
}
## ----summary analysis part1------------------
# multiply by correction
cutoff <- quantile(SE1, probs = .4)
final_sample <-
sim_table %>%
pivot_longer(cols = -c(sample_size, var, nsim)) %>%
dplyr::rename(item = name, se = value) %>%
dplyr::group_by(sample_size, var, nsim) %>%
dplyr::summarize(percent_below = sum(se <= cutoff)/length(unique(DF_RELpos$item))) %>%
ungroup() %>%
# then summarize all down averaging percents
dplyr::group_by(sample_size, var) %>%
summarize(percent_below = mean(percent_below)) %>%
dplyr::arrange(percent_below) %>%
ungroup()
flextable(final_sample %>% head()) %>% autofit()
## --------------------------------------------
final_table_pos <- calculate_correction(
proportion_summary = final_sample,
pilot_sample_size = length(unique(DF_RELpos$ssID)),
proportion_variability = cutoff_relpos$prop_var
)
flextable(final_table_pos) %>%
autofit()
## ----summary analysis part2------------------
cutoff <- quantile(SE2, probs = .4)
final_sample2 <-
sim_table2 %>%
pivot_longer(cols = -c(sample_size, var, nsim)) %>%
dplyr::rename(item = name, se = value) %>%
dplyr::group_by(sample_size, var, nsim) %>%
dplyr::summarize(percent_below = sum(se <= cutoff)/length(unique(DF_RELneg$item))) %>%
ungroup() %>%
# then summarize all down averaging percents
dplyr::group_by(sample_size, var) %>%
summarize(percent_below = mean(percent_below)) %>%
dplyr::arrange(percent_below) %>%
ungroup()
flextable(final_sample2 %>% head()) %>% autofit()
## --------------------------------------------
final_table_neg <- calculate_correction(
proportion_summary = final_sample2,
pilot_sample_size = length(unique(DF_RELneg$ssID)),
proportion_variability = cutoff_relneg$prop_var
)
flextable(final_table_neg) %>%
autofit()
## ----summary analysis part3------------------
cutoff <- quantile(SE3, probs = .4)
final_sample3 <-
sim_table3 %>%
pivot_longer(cols = -c(sample_size, var, nsim)) %>%
dplyr::rename(item = name, se = value) %>%
dplyr::group_by(sample_size, var, nsim) %>%
dplyr::summarize(percent_below = sum(se <= cutoff)/length(unique(DF_UNREL$item))) %>%
ungroup() %>%
# then summarize all down averaging percents
dplyr::group_by(sample_size, var) %>%
summarize(percent_below = mean(percent_below)) %>%
dplyr::arrange(percent_below) %>%
ungroup()
flextable(final_sample3 %>% head()) %>% autofit()
## --------------------------------------------
final_table_unrel <- calculate_correction(
proportion_summary = final_sample3,
pilot_sample_size = length(unique(DF_UNREL$ssID)),
proportion_variability = cutoff_unrel$prop_var
)
flextable(final_table_unrel) %>%
autofit()
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