Directions: Instructions. Read the following paragraph and answer the five questions which follow. 

A researcher working in the vocational interests surveyed different interest assessment tools and after a careful scrutiny selected 68 scales presumably covering all areas of vocational interests. He administered all these scales to a large sample (N = 750). The researcher correlated every scale with every other scale and obtained 68 × 68 correlation matrix. The 68 x 68 correlation matrix, without altering any of the diagonal elements, was factor analyzed and the unrotated factors were extracted. The Cattle's scree suggested 11 factors, where as Kaiser-Guttman's root ≥ 1 criterion suggested 14 factors for further rotation. The eleven factors explained 72 percent of variance. The eleven factors were varimax-rotated. After examining the results and discussion, the researcher decided to carry out the second-order factor analysis. He, therefore, re-rotated the eleven factors and found that some of the inter-factor correlations were fairly high. The second-order factor analysis suggested three second-order factors which were fairly interpretable.