What this means is that items that

What this means is that items that
have higher difficulty values tend to
be endorsed by fewer individuals (i.e.,
only those with higher levels of the
trait). The term difficulty in this context
arises from the fact that Item Response
Theory tended to be used originally
to model performance in educational
assessments, where only students with
a high latent academic ability would be
likely to get a positive (correct) score on
more difficult test items.
When examining ratings of Likert
items, Item Response Theory provides
a series of discrimination values in
sequence for the set of (ordered) possible
responses. That is, the lowest score, for
example 1 versus any other score from
2-7; a score of 1 or 2 versus any other
higher score from 3-7, and so on. With
a 7-point Likert scale, there are therefore
six item difficulty parameters, which
reflect the following contrasts:
(2.0) β1
= 1 v 234567
β2
= 12 v 34567
β3
= 123 v 4567
β4
= 1234 v 567
β5
= 12345 v 67
β6
= 123456 v 7
Item discrimination, in contrast,
reflects that ability of an item to
differentiate between people with
similar levels of the trait. Critically,
an item’s ability to differentiate
between people is most precise at
trait ranges corresponding to the item
difficulty parameter. For example,
imagine we have two items, one with
a discrimination parameter of 1.0 and
a difficulty of -1.0, the other also with
a discrimination parameter of 1.0 but a
difficulty parameter of 1.0. Both items
are equally able to differentiate between
individuals, but at different regions of
the trait range.

Hasil (Bahasa Indonesia) 1:

What this means is that items that have higher difficulty values tend to be endorsed by fewer individuals (i.e., only those with higher levels of the trait). The term difficulty in this context arises from the fact that Item Response Theory tended to be used originally to model performance in educational assessments, where only students with a high latent academic ability would be likely to get a positive (correct) score on more difficult test items. When examining ratings of Likert items, Item Response Theory provides a series of discrimination values in sequence for the set of (ordered) possible responses. That is, the lowest score, for example 1 versus any other score from 2-7; a score of 1 or 2 versus any other higher score from 3-7, and so on. With a 7-point Likert scale, there are therefore six item difficulty parameters, which reflect the following contrasts: (2.0) β1 = 1 v 234567 β2 = 12 v 34567 β3 = 123 v 4567 β4 = 1234 v 567 β5 = 12345 v 67 β6 = 123456 v 7Item discrimination, in contrast, reflects that ability of an item to differentiate between people with similar levels of the trait. Critically, an item’s ability to differentiate between people is most precise at trait ranges corresponding to the item difficulty parameter. For example, imagine we have two items, one with a discrimination parameter of 1.0 and a difficulty of -1.0, the other also with a discrimination parameter of 1.0 but a parameter kesulitan 1.0. Kedua item sama-sama dapat membedakan antara individu, tetapi di berbagai daerah kisaran sifat.

Hasil (Bahasa Indonesia) 2:

Apakah ini berarti bahwa item yang
memiliki nilai kesulitan yang lebih tinggi cenderung
akan didukung oleh individu yang lebih sedikit (yaitu,
hanya mereka dengan tingkat yang lebih tinggi dari
sifat). Kesulitan istilah dalam konteks ini
muncul dari kenyataan bahwa Barang Response
Theory cenderung digunakan awalnya
untuk model kinerja dalam pendidikan
penilaian, di mana hanya siswa dengan
kemampuan akademik yang laten yang tinggi akan
cenderung untuk mendapatkan positif (yang benar) skor pada
tes yang lebih sulit item.
Ketika memeriksa peringkat dari Likert
item, Item Response Theory menyediakan
serangkaian nilai-nilai diskriminasi dalam
urutan untuk set (memerintahkan) mungkin
tanggapan. Artinya, nilai terendah, untuk
contoh 1 berbanding setiap nilai lain dari
2-7; skor 1 atau 2 vs lain
skor yang lebih tinggi 3-7, dan sebagainya. Dengan
skala Likert 7 poin, ada oleh karena itu
enam parameter kesulitan item, yang
mencerminkan kontras berikut:
(2.0) β1
= 1 v 234.567
β2
= 12 v 34.567
β3
= 123 v 4567
β4
= 1.234 v 567
β5
= 12345 v 67
β6
= 123456 v 7
Barang diskriminasi, kontras,
mencerminkan bahwa kemampuan item untuk
membedakan antara orang-orang dengan
tingkat yang sama dari sifat tersebut. Kritis,
kemampuan item untuk membedakan
antara orang yang paling tepat di
rentang sifat yang sesuai dengan item
parameter kesulitan. Sebagai contoh,
bayangkan kita memiliki dua item, satu dengan
parameter diskriminasi 1.0 dan
kesulitan dari -1.0, yang lain juga dengan
parameter diskriminasi 1,0 tetapi
parameter kesulitan 1.0. Kedua item
sama-sama mampu membedakan antara
individu, tetapi pada daerah yang berbeda dari
kisaran sifat.