Review

1. Review A factorial experiment compares native and non-native English speakers on their compehension of either spoken or written passages. Therefore the factors are • English experience: native vs. non-native • Material: spoken vs. written Imagine the data show a main effect of English experience. What does this mean? • The effect of English experience is bigger than that of material • Averaging over material type, there’s a difference between native and non-native speakers • The effect of material is different for native vs. non-native speakers • Variation in comprehension is entirely explained by English experience

2. Review A factorial experiment compares native and non-native English speakers on their compehension of either spoken or written passages. Therefore the factors are • English experience: native vs. non-native • Material: spoken vs. written Assume the null hypothesis is true, that comprehension of does not depend on type of material. What’s the expected value of MSMaterial? • Depends on the size of the main effect • Depends on whether there’s an interaction • Depends on the degrees of freedom • s2

3. Review A factorial experiment compares native and non-native English speakers on their compehension of either spoken or written passages. Mean comprehension scores: Fill in the last cell so that there’s no interaction. • 69 • 84 • 85 • 97