Perbaiki Model Heywood Laten

Pada latihan sebelumnya, Anda menemukan bahwa survei adopsi memiliki korelasi > 1 pada variabel laten. Anda perlu memperbaiki kasus Heywood dengan menggabungkan dua variabel laten menjadi satu variabel laten. Setelah itu, analisis dan rangkum model untuk melihat apakah penggabungan kedua faktor tersebut menjadi satu telah menyelesaikan korelasi yang bermasalah.

Latihan ini adalah bagian dari kursus

Pemodelan Persamaan Struktural dengan lavaan di R

Petunjuk latihan

Ubah model agar hanya membuat satu faktor goodstory yang diukur oleh keenam variabel manifes dalam himpunan data adoptsurvey.
Analisis model dengan fungsi cfa() untuk memastikan tidak ada pesan galat.
Jalankan summary() untuk model guna melihat kecocokan model akhir.

Latihan interaktif praktis

Cobalah latihan ini dengan menyelesaikan kode contoh berikut.

# Look at the data
head(adoptsurvey)

# Edit the original model 
adopt.model <- 'goodstory =~ pictures + background + loveskids
inperson =~ energy + wagstail + playful'

# Analyze the model
adopt.fit <- cfa(model = ___, data = adoptsurvey)

# Look for Heywood cases
summary(___, standardized = TRUE, fit.measures = TRUE)

Edit dan Jalankan Kode

Latihan ini adalah bagian dari kursus

Pemodelan Persamaan Struktural dengan lavaan di R

SkillTag.level.advancedSkillTag.label

4.8+

Mulai Kursus Gratis

In this chapter, you will dive into creating your first structural equation model with lavaan. You will learn important terminology, how to build, and run models. You will create a one-factor model of mental test abilities using the classic Holzinger and Swineford (1939) dataset.

Exercise 1: Model Specification Exercise 2: Build Text Speed Model Exercise 3: Build Political Democracy Model Exercise 4: Model Analysis Exercise 5: Analyze Text Speed Model Exercise 6: Summarize Political Democracy Exercise 7: Model Assessment Exercise 8: Examine Standardized Loadings Exercise 9: Explore Fit Indices Exercise 10: Examine Political Democracy

In this chapter, you will expand your skills in lavaan to creating multi-factor models. We will improve the one-factor models from the last chapter by creating multiple latent variables in the classic Holzinger and Swineford (1939) dataset.

Exercise 1: Multifactor Specification Exercise 2: Create a Zero df Model Exercise 3: Fix the Zero df Model Exercise 4: Build a Multi-Factor Model Exercise 5: Summarize the Multi-Factor Model Exercise 6: Model Structure Exercise 7: Three-Factor Model with Zero Correlation Exercise 8: Create a Direct Path Exercise 9: Modification Indices Exercise 10: Check Model Variance Exercise 11: Examine Modification Indices Exercise 12: Model Comparison Exercise 13: Compare Two Models Exercise 14: Select Specific Fit Indices

Structural equation models do not always run smoothly, and in this chapter, you will learn how to troubleshoot Heywood cases which are common errors. You will also learn how to diagram your model in R using the semPlot library.

Exercise 1: Kasus Heywood pada Variabel Laten Exercise 2: Menganalisis Kasus Heywood Laten Exercise 3: Perbaiki Model Heywood Laten

Latihan Saat Ini

Exercise 4: Kasus Heywood pada Variabel Manifes Exercise 5: Menganalisis Kasus Heywood pada Variabel Manifes Exercise 6: Perbaiki Model Heywood Manifest Exercise 7: Buat Diagram dengan semPaths()Exercise 8: Diagram SEM Dasar Exercise 9: Ubah Tata Letak Exercise 10: Ubah Label

This chapter examines the WAIS-III IQ Scale and its structural properties. You will use your skills from the first three chapters to create various models of the WAIS-III, troubleshoot errors in those models, and create diagrams of the final model.

Exercise 1: Model the WAIS-III IQ Scale Exercise 2: Create a Four-Factor Model Exercise 3: Update the Model Exercise 4: Diagram the Final Model Exercise 5: Update the WAIS-III Model Exercise 6: Add Paths to Improve Fit Exercise 7: Compare Models Exercise 8: A Hierarchical Model of IQ Exercise 9: Create a Hierarchical Model Exercise 10: Diagram the Hierarchical Model Exercise 11: Course Wrap Up