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In order to read the data file, point R to the directory where it is located. R uses forward slashes for reading directory structures (1e., how UNIX- type systems store files) or double backslash, e.g., C:\\Regression\\Data.csv. As an example, say a dataset with variable names in the first row is stored in a filenamed data.csv that is located in a folder called name, which is in a folder called file. R can read the file using the following syntaxes:

Table 2 In order to read the data file, point R to the directory where it is located. R uses forward slashes for reading directory structures (1e., how UNIX- type systems store files) or double backslash, e.g., C:\\Regression\\Data.csv. As an example, say a dataset with variable names in the first row is stored in a filenamed data.csv that is located in a folder called name, which is in a folder called file. R can read the file using the following syntaxes:

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Table 1: Commonly Used R Functions
Table 1: Commonly Used R Functions
Table 3: Lavaan Commands There are multiple packages that can do structural equation modeling in R= (e.g. sem, OpenMx), but this article will focus solely on the lavaan (Rosseel, 2012) package. Information and documentation about the package can be found at http://www. lavaan.org.
Table 3: Lavaan Commands There are multiple packages that can do structural equation modeling in R= (e.g. sem, OpenMx), but this article will focus solely on the lavaan (Rosseel, 2012) package. Information and documentation about the package can be found at http://www. lavaan.org.
Note. Data taken from Canivez et al. (2009, p. 257). WASI: Wechselr Abbreviated Scale of Intelligence; WRIT: Wide Range Intelligence Test; Voc: Vocabulary; BD: Block Design; Sim: Similarities; MR: Matrix Reasoning; VerbAn: Verbal Analogies; Mat: Matrices; Dia: Diamonds. Jechsler Abbreviated Scale of Intelligence and Wide Range Intelligence Test Summary Statistic
Note. Data taken from Canivez et al. (2009, p. 257). WASI: Wechselr Abbreviated Scale of Intelligence; WRIT: Wide Range Intelligence Test; Voc: Vocabulary; BD: Block Design; Sim: Similarities; MR: Matrix Reasoning; VerbAn: Verbal Analogies; Mat: Matrices; Dia: Diamonds. Jechsler Abbreviated Scale of Intelligence and Wide Range Intelligence Test Summary Statistic
lavaan Results from the Single-Factor Model
lavaan Results from the Single-Factor Model
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Latent variable modeling
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