I thought I replied to this but it seems to not be showing. I'm going to reply again, if it posts twice sorry.

Thanks for letting me know more information is needed! I wasn't sure if there was a really obvious basic answer that applied to all non significant anova results.

I have included more information below. Essentially all research suggests that there should have been a significant main effect of IV1 and IV2 on the DV (and there was likely to be a significant interaction). Please let me know if more specific information is needed.

**Question asked** 1. How do the administrator’s comment and eyewitness confidence influence evaluators’ ratings of eyewitness accuracy, independently and in combination? That is, we are examining the main effects and interaction of our independent variables on evaluators’ ratings. In terms of the interaction, we are asking whether the two variables have an additive or interactive effect?

Main effect of eyewitness confidence --> Ratings of eyewitness accuracy?

Main effect of administrator comment --> Ratings of eyewitness accuracy?

Administrator Comment x Eyewitness Confidence --> Ratings of eyewitness accuracy?

It is a 2 x 2 ANOVA because there are two independent variables, each with two levels: confidence (low or moderate) and administrator comment (neutral or confirmatory). Thus, there were four conditions in total:

1. Low eyewitness confidence and neutral administrator comment

2. Low eyewitness confidence and confirmatory administrator comment

3. Moderate eyewitness confidence and neutral administrator comment

4. Moderate eyewitness confidence and confirmatory administrator comment

The design is between groups because each respondent only participated in one condition. We are interested in testing whether the effect of low or moderate eyewitness confidence on ratings of eyewitness accuracy varies according to whether the administrator made a neutral comment or confirmatory comment. This means we need to see if there is a significant interaction between confidence (low vs. moderate) and administrator comment (neutral vs. confirmatory) on eyewitness accuracy ratings (evaluators’ perception that the eyewitness made an accurate identification).

**Results**

The results above show that the main effect of IV_Conf is not significant. That is, eyewitness confidence did not influence perceptions of eyewitness accuracy.

The results above show that the main effect of IV_AdComm is not significant. That is, administrator comment did not influence perceptions of eyewitness accuracy.

The results above show that the IV_Conf*IV_AdComm interaction effect is marginally significant. That is, there is a marginally significant interaction between eyewitness confidence and administrator comment but the effect did not quite reach the level required for statistical significance.