Step 1: Understand the statistical purpose.
- Factor analysis is a statistical method that examines relationships among observed variables. - It identifies latent variables (factors) that explain patterns of correlations among measured variables.
Step 2: Analyze given options.
- Correlation: Measures relationship between two variables only. (Incorrect)
- Regression: Predicts one variable based on another. (Incorrect)
- Factor Analysis: Discovers underlying structure from loading patterns. (Correct)
- Item Analysis: Evaluates test questions, not loading patterns. (Incorrect)
Thus, the correct statistical technique is: \[ \boxed{{Factor Analysis}} \]
If Soni got an intelligence score of 115, then what percentage of the population (% as given in the graph) will have intelligence scores higher than the score obtained by Soni? (rounded off to 2 decimal places) 
Eight students (P, Q, R, S, T, U, V, and W) are playing musical chairs. The figure indicates their order of position at the start of the game. They play the game by moving forward in a circle in the clockwise direction.
After the 1st round, the 4th student behind P leaves the game.
After the 2nd round, the 5th student behind Q leaves the game.
After the 3rd round, the 3rd student behind V leaves the game.
After the 4th round, the 4th student behind U leaves the game.
Who all are left in the game after the 4th round?
