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.
31. Below is a summary of the farthest travel dates in the future where it is possible to reserve seats today for those Train Companies offering seat reservations and Advance tickets. Advance tickets are generally not available earlier than 12 weeks before the date of travel. Once train times are confirmed, Advance tickets will begin to appear in our Journey Planner. You will be able to find full details of availability and choose to buy them from your preferred retailer.