Technical Manual - Renaissance Learning

ValidityRelationship of STAR Early Literacy Scores to Other TestsTable 22: Other External Validity Data: STAR Early Literacy Correlations with Tests Administered Prior to Spring 2001,Grades K–3 a (Continued)K 1 2 3Test Form Date Scoren b r n r n r n rTerraNovaSpring 00 Scaled – – – – 69 0.64* 68 0.62*Spring 00 Scaled – – – – – – 17 0.46Fall 00 Scaled – – – – 38 0.70* 31 0.44*Texas Primary Reading Inventory (TPRI)Fall 00 Letter 13 0.46 – – – – – –SummaryGrade(s) All K 1 2 3Number of students 1,122 94 176 295 557Number of coefficients 29 4 5 7 13Average validity – 0.49 0.63 0.57 0.59Overall average 0.58a. No external test scores were reported for pre-kindergarten students.b. Sample sizes are in the columns labeled “n” and correlation coefficients are in the columns labeled “r.”* Denotes that a correlation is statistically significant at the 0.05 level.Table 23:Predictive Validity Data: STAR Early Literacy Predicting Later Performancefor Grades Pre-K–3Predictor Date Criterion Date a Pre-K b K 1 2 3n r n r n r n r n rSTAR Early LiteracyFall 05 Spr 06 142 0.47* 7,091 0.53* 7,394 0.61* 1,361 0.69* 201 0.76*Fall 06 Spr 07 371 0.61* 10,231 0.51* 9,174 0.62* 1,704 0.73* 357 0.77*Fall 05 Fall 06 P – – 1,945 0.47* 685 0.64* 30 0.90* – –Fall 05 Spr 07 P – – 1,945 0.42* 685 0.62* 30 0.72* – –Spr 06 Fall 06 P 22 0.67* 1,945 0.58* 685 0.77* 30 0.85* – –Spr 06 Spr 07 P 22 0.50* 1,945 0.59* 685 0.71* 30 0.71* – –STAR Early LiteracyTechnical Manual64