Can somoene help me solve and explain these two problems related to factorial ds

Question

Can somoene help me solve and explain these two problems related to factorial dsign and psychological research methods? Thanks!

For number 2 the answers to choose from are: gender only/ both gender and intoxication level/ intoxication level only

For number 3 the answers to choose from are: no/ yes

Problem 2:

For number 1 the answers to choose from are: main effects of both variables/ main effect of gender/ main effect of meal size.

For number 2 the answers to choose from are: yes/ no

The popular notion that alcohol intoxication enhances perceptions of the physical attractiveness of the opposite sex has been inconsistently supported. A recent study tested intoxicated and non-intoxicated persons of both genders in naturalistic settings after measuring their blood alcohol concentration (BAC) by a breath test. A sample of 80 heterosexual university student social drinkers was recruited at a campus pub and campus parties over a 3-month period to take a survey rating the attractiveness of unfamiliar faces of the opposite gender presented in photographs on a 1 - 10 scale. Attractiveness ratings were collected for both genders and at each of 3 BAC levels: Sober (BAC = 0), mildly intoxicated (BAC .01%-,09%), and highly intoxicated (BAC .10%-.19%). (Assume equal group sizes in each cell) The mean attractiveness ratings were as follows: Sober Mildly Intoxicated Highly Intoxicated Males 6.2 8.1 8.5 Females7.4 6.5 5.7 1. What sort of factorial design is this? 2x3 2. Considering the study and data presented above, let's examine the data for potential main effects of the two predictor variables. Although the final conclusions would be based on inferential statistical tests (coming soon in Module 8 - stay tuned!), if we assume that any difference in means of 1 or more indicates statistical significance, these results indicate main effect(s) of [Select ] 3. In the study described above, does it look like there may be an interaction? That is, does the effect of one predictor variable differ depending on the level of the other predictor variable? [ Select ]

Explanation / Answer

In the first problem, the answer for number 2 is intoxication level. This is the main effect because it is the independent variable in the study. For number 3, the answer is yes. It is probable that gender differences might lead to an interaction effect, given that expression of attraction to the opposite gender is more open in men than women.

In the second problem, the answer for number 2 is the main effect of gender. This is because the judgement of the meal size is being attributed to the gender. For number 3, the answer is no. Because gender itself is being studied as the independent variable.

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