Jacob (clothing retailer) to Jacob Connexion. Jacob Connexion's target demographic is 25- to 35-year-old women. The Jacob Lingerie boutique features items like bras, panties, lingerie, sleepwear and loungewear. Bra selection is sized 32A-B-C, 34A-B-C-D, 36A-B-C-D, 38A-B-C; panties XS-S-M-L; most other items sized XS-L. Josef stores opened in 2005 (5 initial stores). The product line is targeting 35+ years old women. Jacob Jr. was the branch for preschoolers to pre-teens. They featured a conservative line of clothing for girls ages five to 14. The line included sweaters, lingerie, jackets, jeans, sports attire, tees, camisoles and other accessories. They also carried a line of undergarments
Item response theory Item response theory In psychometrics, item response theory (IRT) (also known as latent trait theory, strong true score theory, or modern mental test theory) is a paradigm for the design, analysis, and scoring of tests, questionnaires, and similar instruments measuring abilities, attitudes, or other variables. It is a theory of testing based on the relationship between individuals' performances on a test item and the test takers' levels of performance on an overall measure of the ability that item was designed to measure. Several different statistical models are used to represent both item and test taker characteristics. Unlike simpler alternatives for