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1. Import the attached movie critic data. In R, to add a random effect x, use the syntax (1|x). So a line of R code
1. Import the attached movie critic data. In R, to add a random effect x, use the syntax (1|x). So a line of R code may look something like:
model = lmer(score ~ (critic|1), data = data)
Use a model of this sort to fit the critic data, thinking of "critic" as a random effect. Repeat this model fitting using "critic" as a fixed effect. What is the major theoretical difference?
Data:
Movie Rating (out of 100) Critic
1 84 87
1 78 81
1 75 73
1 65 63
2 82 91
2 76 83
2 68 59
2 58 62
3 45 61
3 49 47
3 62 70
3 65 81
4 89 83
4 87 87
4 75 62
4 72 78
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