In an experiment with two independent variables, the occurrence of an interaction means thatQuestion 3Answera.the effect of one independent variable was the same at all levels of the other independent variable.b.the effect of one independent variable was different at different levels of the other independent variable.c.the experiment was poorly designed.d.there was a ceiling effect.

It is likely that you will find an interaction whenQuestion 6Answera.the effect of one independent variable is affected by a second independent variable.b.there is a restriction of range problem.c.the effect of an independent variable is affected by the dependent variable.d.the dependent variable is affected by an independent variable.

Which of the following are crucial characteristics of an experiment?Multiple select question.Ability to examine associationsAbility to observe phenomena in a natural settingRandom assignment of participants to conditionsManipulated independent variable

When a confound exists in an experiment, it places restrictions onQuestion 5Answera.interpretations of the main effects.b.the statistical significance of the results.c.interpretations of the interactions.d.statements made about causation.

In an experiment, confounding occurs whenQuestion 7Answera.more than one independent variable is manipulated.b.an interaction occurs between two independent variables.c.an uncontrolled variable covaries with an independent variable.d.an interaction occurs between three or more independent variables.

Suppose we have two factors A and B. What does an A x B interaction mean in a two way ANOVA?Group of answer choicesThe main effects for factors A and B must be short of significanceThe effect of factor A depends on the level of factor BThere must be a significant main effect for factors A and B