| Tag | Value |
|---|---|
| file | Assumptions_eur-assumptions-101-en_eur-assumptions-101-en |
| name | eur-assumptions-101-en |
| section | Assumptions/Homogeneity of variance/Levene's test |
| type | num |
| solution | 0.291 |
| tolerance | 0 |
| Type | Performing analysis |
| Program | SPSS |
| Language | English |
| Level | Statistical Literacy |
Testing effect
Research has shown that when people learn words from a foreign language they better remember those words if they first study the words and then test themselves trying to recollect the words, compared to just studying the words twice. A researcher from the institute of psychology wants to know whether this so-called testing effect can be proven to exist in the classroom. She divides a group of 60 students into three groups [condition]. The students in group 1 study a list of 30 French words and their Dutch translation twice (1 = restudy). The students in group 2 study the list of 30 French words and their Dutch translation once and then test themselves (2 = testing). The students in group 3 just study the list of 30 French words and their Dutch translation once without testing themselves (3 = study_once). A week after the study phase, the students took a test where they had to give the Dutch translation of the 30 French words that they studied earlier. The total number of correct translations is represented by the variable score [score]. Additionally, the researcher included for each student his/her French grade [French].
Open the data file.
Conduct an analysis to determine whether there is a difference between the three conditions [condition] in terms of total number of correct translations [score]. Test whether there is a violation of the homogeneity of variances assumption for this analysis. What is the F-value for this assumption test? (3 decimals)
The F-value is .291. The correct analysis is ANOVA with a so-called homogeneity test. In SPSS this is Levene’s test.