Use the multi-level model when the value of The values of ICC ( ) is between 0 and 1. Is the between-group variance of the dependent variable, is the within-group variance. Measures the proportion of between-group variance of the dependent variable Intra-class correlation (ICC), which is sometimes known as cluster effect. Information about the ethnicity (which is dummy coded as European American orĪfrican American) and each student’s scores in reading and mathematicsĪnother issue that needs to be considered when analyzing multi-level data is the Therefore, we collected classroom-level data to include the percentage ofĮuropean American students in each class and the number of years in teachingĮxperience of each classroom teacher.
The achievement gap between European American andĪfrican American students has been existed for centuries and never closed. Investigate the relationship between student achievement scores in reading and In a middle school in the southeast region of the United States in order to For example, we randomly selected students from 119 classrooms That is, both files should have the same variable (teacherid) so that the twoĭata files are linked by this variable, which are sorted in an ascending orĭescending order. Teachers and a data file for students linked by teacher identification numbers (teacherid). In theĬase of students nested within classrooms, we would have a data file for To save the data sets into two separate files linked by one key variable. Before importing the data into HLM, we need
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HLM is probably the most user-friendly software available for multi-levelĭata, so let us use HLM as a start. The classroom influence the achievement of European American students? How do teacher experience and the percentage of European American students in What is the achievement gap between European American and African American What is the relationship between reading and mathematics achievement? The research questions that guided this study were: The percentage of European American students inĮach classroom ranged from 0 to 99 with a mean of 33.49 and a standard deviation The teachingĮxperience of these teachers ranged from 1 to 35 years with a mean of 10.29 andĪ standard deviation of 8.53. Each classroom was taught by a unique teacher. Standard deviation of 10.22 and that in reading was 348.36 with a standardĭeviation of 10.68. TheĪverage performance score of these students in mathematics was 354.07 with a (32.4%) were European American and 2649 (67.6%) were African American. Data are from 3921 students in 119 classrooms.
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