Understanding Locus of Control and Measurement Validity

Criterion Validity

Ability of a measure to predict relevant outcomes.

Bias in Research

Systematic error affecting the results or conclusions.

Questionnaire Design

Process of creating effective survey questions and options.

Random Assignment

Assigning participants randomly to control or experimental groups.

Random Sampling

Selecting a subset of individuals from a larger population randomly.

Locus of Control

Belief about control over life events; internal vs. external.

Concurrent Validity

Measure's ability to correlate with current outcomes.

Predictive Validity

Measure's ability to forecast future outcomes.

Reliability

Consistency of a measure across different instances.

Validity

Accuracy of a measure in assessing what it claims.

Measurement Error

Discrepancy between measured value and true value.

Data Analysis

Process of inspecting, cleansing, and modeling data.