Exam 18: Exploratory Factor Analysis

An examiner of trainee chefs wanted to look at the underlying constructs of their 12 core culinary skills assessments. They ran a factor analysis with varimax rotation on the scores of the 12 assessments. Looking at the rotated factor matrix from their output below, which factor is the most likely to be labelled 'creativity'?

Based on the following output, which item on this questionnaire would most improve the reliability of the questionnaire if it were removed?

A scree plot in factor analysis is a plot of:

A variable that has no unique variance (or random variance) would have a communality of:

Which of the following sentences regarding the similarities of factor analysis and PCA is false?

Based on the scree plot below, how many factors should be extracted?

An examiner of trainee chefs wanted to look at the underlying constructs of their 12 core culinary skills assessments. They ran a factor analysis with varimax rotation on the scores of the 12 assessments. Looking at the rotated factor matrix from their output below, which factor is the most likely to be labelled 'hygiene'? Rotated Factor Matrix

Based on this scree plot, how many factors should be extracted?

A variable that shares none of its variance with any other variable would have a communality of:

An examiner of trainee chefs wanted to look at the underlying constructs of their 12 core culinary skills assessments. They ran a factor analysis with varimax rotation on the scores of the 12 assessments. Looking at the rotated factor matrix from their output below, how many variables load onto factor 1?

Which of the following is true of factor scores?

Oblique rotation should be used when:

An examiner of trainee chefs wanted to look at the underlying constructs of their 12 core culinary skills assessments. They ran a factor analysis with varimax rotation on the scores of the 12 assessments. Looking at the rotated factor matrix from their output below, what would be a good label for factor 2?

Marvin Zuckerman's work on dimensions of sensation seeking reveals four dimensions to this trait: (1) thrill and adventure seeking susceptibility to boredom (e.g., being easily bored by predictable experiences and people). These dimensions are theoretically independent. Using the SPSS output below, do you think that the factor structure of the questionnaire supports Zuckerman's theory?

Marvin Zuckerman's work on dimensions of sensation seeking reveals four dimensions to this trait: (1) thrill and adventure seeking susceptibility to boredom (e.g., being easily bored by predictable experiences and people). These dimensions are theoretically independent. A researcher was interested in designing a new questionnaire to measure sensation seeking. A 16-item questionnaire using a 5-point Likert scale (1 = strongly disagree, 2 = disagree, 3 = neither, 4 = agree, 5 = strongly agree) was devised and given to 750 people. Based on the SPSS output below, what could you conclude? Based on the SPSS Output below, that relates to the analysis of the sensation-seeking questionnaire, what could you conclude?

A reliability analysis was run on items from a questionnaire and gave rise to a Cronbach's alpha of α = -.8. What is the most likely explanation?

An examiner of trainee chefs wanted to look at the underlying constructs of their 12 core culinary skills assessments. They ran a factor analysis with varimax rotation on the scores of the 12 assessments. Looking at the rotated factor matrix from their output below, which factor is the most likely to be labelled 'preparation of fruit and vegetables'?

Which of the following regarding the determinant of the R-matrix, denoted |R|, is false?

What does the following output from a factor analysis tell us?