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’.
Copy the results
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”
Copy the results
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)
Copy the results
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.
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