Ashley Comer Amy Doerfler Lyssa Fisher-Rogers Travis Morris Gloria Pagan EDFN 508 July 8, 2009
Prior to analyzing the Seattle school data, our hypothesis is directional. Based on current research and personal observations as educators, we are curious to discover whether or not a relationship exists between transience and the academic achievement of students, based on GPA and ITBS math scores. The null hypothesis states that relocating homes does not affect student achievement, nor does the length of time spent living with a specific area.
In order to discover a correlation we analyzed the following variables form the Seattle middle school data set for sixth grade students relevant to school years 2000 and 2001: Second Semester GPA for Iowa Test of Basic Skills (ITBS) for Mathematics, Reading, and Language Arts Living in the same home as the previous year Length of time living in Seattle Gender
Merriam Webster defines transience as “passing through or by a place with only a brief stay or sojourn.” Our definition refers to the movement of any students in and out of the given school district. This same term also applies to students who are living within the same Seattle district but may have changed schools prior or during their sixth grade academic school year.
Numeric Variable Mean Score: Median Score: 42 Mode: 42 Range: 98 Inter-quartile Range: 25 Standard Deviation: Standard Error of Mean:.906 95% Confidence Interval:
Numeric Variable Mean Score: Median Score: 39 Bi-Modal, 1 and 38 Range: 89 Inter-quartile Range: 27 Standard Deviation: Standard Error of Mean:.85 95% Confidence Interval:
Numeric Variable Mean: 39.7 Median: 40 Mode: 41 Range: 98 Standard Deviation: 19.3 Standard Error of Mean:.89 Inter-quartile Range: 25 95% Confidence Interval: to 41.51
Numeric Varible Mean: 2.6 Median: 2.64 Mode: 4 Range: 4 Standard Error of Mean:.036 Standard Deviation:.85 Inter-quartile Range: 1.18 95% Confidence Interval:
Ordinal Variable Median: 4 (11-20 Years) Mode: 4 Range: 4 Inter-quartile Range: 2 1=2 Years or Less 2=3 to 5 Years 3=6 to 10 Years 4=11 to 20 Years 5=More than 20 Years
Nominal variable Mode: 1.24 Standard Error of Proportion:.02 95% Confidence Interval:.72 to.80
We found that concurrent research shows that by and large transient pupils are underperforming compared to non-transient students by as much as 50%. (Demie, 2002) The sample consisted of 2,403 students, which is considerably larger than the sample we examined from the Seattle Middle School data set. The researchers studied measures of student background such as name, date of birth, sex, meals status (free/reduced), ethnic background, date of admission or mobility and levels of fluency in English.
We were interested in the “Pupil Mobility” research table that showed the comparative performance of mobile and non-mobile, or “stable”, students. This table shows a positive correlation between achievement and the length of time a student spent in the same school. We found similar correlations in the Seattle-based data as stated in the current research.
Correlations GPA 2nd semester th grade math ITBS score GPA 2nd semester 00-01Pearson Correlation ** Sig. (2-tailed).000 N th grade math ITBS scorePearson Correlation.400 ** Sig. (2-tailed).000 N **. Correlation is significant at the 0.01 level (2-tailed).
Dependent Variable:6th grade math ITBS score Source Type III Sum of Squaresdf Mean SquareFSig. Corrected Model a Intercept hmsame gender hmsame * gender Error Total Corrected Total a. R Squared =.017 (Adjusted R Squared =.009) Do you live in the same home as last school year? * gender2 Dependent Variable:6th grade math ITBS score Living in the Same home as Last Yeargender2MeanStd. Error 95% Confidence Interval Lower BoundUpper Bound YesMale Female NoMale Female
Tests of Between-Subjects Effects Dependent Variable: GPA 2nd semester Source Type III Sum of SquaresdfMean SquareFSig. Corrected Model a Intercept hmsame gender hmsame * gender Error Total Corrected Total a. R Squared =.056 (Adjusted R Squared =.049) Do you live in the same home as last school year? * gender2 Dependent Variable: GPA 2nd semester Living in Same Home as Last Yeargender2MeanStd. Error 95% Confidence Interval Lower BoundUpper Bound YesMale Female NoMale Female
Tests of Between-Subjects Effects Dependent Variable: GPA 2nd semester Source Type III Sum of SquaresdfMean SquareFSig. Corrected Model a Intercept famsea gender famsea * gender Error Total Corrected Total a. R Squared =.044 (Adjusted R Squared =.022) Descriptive Statistics Dependent Variable: GPA 2nd semester How long has your family lived in Seattle?gender2MeanStd. DeviationN 2 years of lessMale Female Total to 5 yearsMale Female Total to 10 yearsMale Female Total to 20 yearsMale Female Total More than 20 yearsMale Female Total TotalMale Female Total
Dependent Variable:6th grade math ITBS score Source Type III Sum of SquaresdfMean SquareFSig. Corrected Model a Intercept famsea gender famsea * gender Error Total Corrected Total a. R Squared =.057 (Adjusted R Squared =.032) Descriptive Statistics Dependent Variable:6th grade math ITBS score How long has your family lived in Seattle?gender2MeanStd. DeviationN 2 years of lessMale Female Total to 5 yearsMale Female Total to 10 yearsMale Female Total to 20 yearsMale Female Total More than 20 yearsMale Female Total TotalMale Female Total
The Seattle Middle School data identifies that a strong relationship exists between the transience of student populations and their academic achievement. However, utilizing two-way variance analyses, the data indicates that mobility within a school district has a greater main effect than mobility among districts. In fact, transferring among districts tends to have a converse effect on student population In-migrant populations perform better both on ITBS math assessments and on the second semester GPA than students whose families have resided longer within the district.