Main Effects & Interactions page 2. Because a main effect is the effect of one independent variable on the dependent variable, ignoring the effects of other independent variables, you will have a total of two potential main. effects in this study: one for age of student and one for teacher expectations. In general, there. is one main effect for every independent variable in a study.
When to Make Reservations. Guests staying at a Disney Resort can book Fastpasses up to 60 days in advance. At that point they are able to make reservations for the length of their stay. Guests not staying at a Disney Resort can book Fastpasses up to 30 days in advance.
Strategy 3: check for FastPass+ reservations if/when park hours are extended OR 1-2 days beforehand. People cancel FastPass+ reservations all the time so it's good to check a day or two beforehand to see if anything has become available. For instance, as I was writing this post, I found a Seven Dwarfs Mine Train FastPass+ reservation for the next day.