Experimental Design and Power

Correlation Test Power Calculator

Estimates approximate power for detecting a nonzero correlation. The worked condition keeps the inputs and convention visible for checking.

Design and power inputs

Set the labeled inputs

correlation
observations
Calculated result

Correlation Test Power

Result
approximate Fisher-z power

    When another method fits at the chosen parameters for correlation test power

    Estimates approximate power for detecting a nonzero correlation. The named quantity is correlation test power calculator. This is section 1 of the correlation test power discussion.

    Save the inputs, formula convention, units, exclusions, and unrounded output with this result. This statement is conditional on the correlation test power setup and section 1.

    For correlation test power, preserve the source definition, the stated units, and the named convention beside the displayed number. A second analyst should be able to reconstruct the same result without guessing which population or setup was intended.

    A controlled alternative before comparing methods for correlation test power

    The Fisher transformation is an approximation and assumes independent paired observations with a stable association. The named quantity is correlation test power calculator. This is section 2 of the correlation test power discussion.

    A correlation of .35 with n=50 gives an approximate power near 0.70. This statement is conditional on the correlation test power setup and section 2.

    For correlation test power, preserve the denominator choice, the stated units, and the named convention beside the displayed number. A second analyst should be able to reconstruct the same result without guessing which population or setup was intended.

    What the result can support when the result is reused for correlation test power

    The Fisher transformation is an approximation and assumes independent paired observations with a stable association. The named quantity is correlation test power calculator. This is section 3 of the correlation test power discussion.

    Save the inputs, formula convention, units, exclusions, and unrounded output with this result. This statement is conditional on the correlation test power setup and section 3.

    For correlation test power, preserve the comparison group, the stated units, and the named convention beside the displayed number. A second analyst should be able to reconstruct the same result without guessing which population or setup was intended.

    A check on the stated parameter in the worked condition for correlation test power

    Estimates approximate power for detecting a nonzero correlation. The named quantity is correlation test power calculator. This is section 4 of the correlation test power discussion.

    A correlation of .35 with n=50 gives an approximate power near 0.70. This statement is conditional on the correlation test power setup and section 4.

    For correlation test power, preserve the time boundary, the stated units, and the named convention beside the displayed number. A second analyst should be able to reconstruct the same result without guessing which population or setup was intended.

    What changes when an input moves before reporting for correlation test power

    The Fisher transformation is an approximation and assumes independent paired observations with a stable association. The named quantity is correlation test power calculator. This is section 5 of the correlation test power discussion.

    Save the inputs, formula convention, units, exclusions, and unrounded output with this result. This statement is conditional on the correlation test power setup and section 5.

    For correlation test power, preserve the design boundary, the stated units, and the named convention beside the displayed number. A second analyst should be able to reconstruct the same result without guessing which population or setup was intended.

    Evidence beside the calculation under the stated model for correlation test power

    The Fisher transformation is an approximation and assumes independent paired observations with a stable association. The named quantity is correlation test power calculator. This is section 6 of the correlation test power discussion.

    A correlation of .35 with n=50 gives an approximate power near 0.70. This statement is conditional on the correlation test power setup and section 6.

    For correlation test power, preserve the rounding rule, the stated units, and the named convention beside the displayed number. A second analyst should be able to reconstruct the same result without guessing which population or setup was intended.

    A note on convention when the sample changes for correlation test power

    Estimates approximate power for detecting a nonzero correlation. The named quantity is correlation test power calculator. This is section 7 of the correlation test power discussion.

    Save the inputs, formula convention, units, exclusions, and unrounded output with this result. This statement is conditional on the correlation test power setup and section 7.

    For correlation test power, preserve the reference population, the stated units, and the named convention beside the displayed number. A second analyst should be able to reconstruct the same result without guessing which population or setup was intended.

    A second look at the condition during an independent review for correlation test power

    The Fisher transformation is an approximation and assumes independent paired observations with a stable association. The named quantity is correlation test power calculator. This is section 8 of the correlation test power discussion.

    A correlation of .35 with n=50 gives an approximate power near 0.70. This statement is conditional on the correlation test power setup and section 8.

    For correlation test power, preserve the interpretation limit, the stated units, and the named convention beside the displayed number. A second analyst should be able to reconstruct the same result without guessing which population or setup was intended.

    Questions about this calculation

    For the worked condition, does this result establish a causal relationship for correlation test power?

    Keep the inputs, units, method, exclusions, and unrounded output together. The reported quantity here is correlation test power calculator.

    When software results differ, what belongs in the saved record for correlation test power?

    Keep the inputs, units, method, exclusions, and unrounded output together. The reported quantity here is correlation test power calculator.