Calculate the Mean and Standard Deviation for Each Group from the Data

question 4

Multiple Choice

Calculate the mean and standard deviation for each group from the data below. ANSWERS
If the equation for the above study was: score = (b₀ + b₁PST_i + b₂gender_i + b₃interaction_i) +E_i, how would you express the interaction effect between the PST and the gender?

• A) PST × gender
• B) PST + gender
• C) PST / gender
• D) PST - gender

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