Experimental Psych- Lab 3 Instructions [Descriptive and Inferential Stats]
Descriptives for Youth Age and Youth Anxiety
– Launch Jamovi on your computer.
– Click on the three lines button in the top left corner and then click “Open” and Browse.
– Select your dataset file from where you saved: ParentingStyle_TripleP_ChildAnxiety4.csv
– Go to the ‘Analyses’ tab.
– Click on ‘Exploration’ and then ‘Descriptives’.
– Move `Youth Age` and `Youth Anxiety` to the ‘Variables’ box.
– In the ‘Statistics’ menu, select:
– Central Tendency (Mean, Median, Mode)
– Percentile values (33,66)
– Dispersion (Range, Variance, Standard Deviation, Minimum, Maximum)
– Under the ‘Plots’ section, check the box for ‘Histogram’.
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Frequencies for Gender, School, and Intervention Type
– Move the following variables to the ‘Variables’ box:
Gender
School
Intervention Type
RejCat3
ColdCat3
OverProCat3
– Click on “Frequency tables”
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T-Test: Youth Anxiety by Intervention Type
– In the ‘Analyses’ tab, click on ‘T-Tests’ and then ‘Independent Samples T-Test’.
– Move `Youth Anxiety` to the ‘Dependent Variables’ box.
– Move `Intervention Type` to the ‘Grouping Variable’ box.
– Under ‘Options’:
– Check ‘Descriptives’.
– Check ‘Descriptives Plots’.
– Check ‘Effect size’.
– Check ‘Assumptions checks’ (Homogeneity, Normality).
– Hypothesis (NULL)
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Interpretation of T-Test
– Review the results to see if the p-value is less than 0.05, which would indicate a significant difference.
– Check the effect size (Cohen’s d):
– 0.2 or less: Weak
– 0.3 to 0.5: Moderate
– 0.8 or more: Strong
– Write a brief interpretation of the results.
ANOVA: Youth Anxiety by Parenting Style3
– In the ‘Analyses’ tab, click on ‘ANOVA’ and then ‘ANOVA’.
– Move `Youth Anxiety` to the ‘Dependent Variable’ box.
– Move `RejCat3“ColdCat3“OverProCat3`and `Intervention Type` to the ‘Fixed Factors’ box.
– Under ‘Options’:
– Check ‘Overall model test’.
– Check ‘n2’.
Copy the results
We will review the results together.
It looks like you’re working on a detailed lab assignment in experimental psychology involving descriptive and inferential statistics. Here’s a breakdown of what you need to do and the steps involved:
### Descriptives for Youth Age and Youth Anxiety
**Variables:**
– Youth Age
– Youth Anxiety
**Statistics:**
– Central Tendency (Mean, Median, Mode)
– Percentile values (33rd, 66th)
– Dispersion (Range, Variance, Standard Deviation, Minimum, Maximum)
**Plots:**
– Histogram for both variables
### Frequencies for Gender, School, and Intervention Type
**Variables:**
– Gender
– School
– Intervention Type
### T-Test: Youth Anxiety by Intervention Type
**Variables:**
– Dependent Variable: Youth Anxiety
– Grouping Variable: Intervention Type
**Options:**
– Descriptives
– Descriptive Plots
– Effect size (Cohen’s d)
– Assumptions checks (Homogeneity, Normality)
**Hypothesis (NULL):** Specify the null hypothesis for the T-Test.
### Interpretation of T-Test
– Check the p-value for significance (p < 0.05).
– Evaluate Cohen’s d for effect size.
### ANOVA: Youth Anxiety by Parenting Style3
**Variables:**
– Dependent Variable: Youth Anxiety
– Fixed Factors: RejCat3, ColdCat3, OverProCat3, Intervention Type
**Options:**
– Overall model test
– Effect size (η²)
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Ensure you follow each step meticulously in Jamovi to generate and interpret the results accurately. Let me know if you need further clarification or assistance with any specific part of the assignment!
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