Advanced Scientific Calculator
Basic Operations
Advanced Functions
Statistical Analysis
Psychometric Tools
Operation:
Addition (+)
Subtraction (-)
Multiplication (*)
Division (/)
First Number:
Second Number:
Calculate
Function:
Power
Square Root
Cube Root
Sine
Cosine
Tangent
Arc Sine
Arc Cosine
Arc Tangent
Natural Logarithm
Logarithm (base 10)
Exponential
Absolute Value
Factorial
Input Value:
Exponent:
Calculate
Analysis Type:
Descriptive Statistics
Correlation Analysis
Normal Distribution (PDF)
Normal Distribution (CDF)
Dataset Values (one per line):
Second Dataset Values (one per line):
Mean:
Standard Deviation:
X Value:
Analyze
Analysis Type:
Cronbach's Alpha
Kuder-Richardson 20
Spearman-Brown Prophecy
Item-Total Correlations
Standard Error & Confidence Intervals
Item Information Function
Test Information Function
Differential Item Functioning
Parallel Analysis
Item Analysis
Score Standardization
Number of Items:
Item Responses (0/1):
Enter dichotomous responses (0 or 1) one per line
Current Reliability:
Length Factor:
Factor by which test length will be changed
Number of Items:
Test Scores:
Reliability Coefficient:
Ability Values (θ):
Enter ability values one per line (typically -3 to +3)
Item Difficulty (b):
Item Discrimination (a):
Ability Values (θ):
Item Difficulties:
Item Discriminations:
Group 1 Responses (0/1):
Group 2 Responses (0/1):
Number of Factors:
Number of Iterations:
Analyze
Results: