Stellar Parallax Is the

question 8

Multiple Choice

Stellar parallax is the

• A) inferred change in the distance to a star as its light is dimmed by passing through an interstellar cloud.
• B) apparent shift seen in the position of a nearby star against more distant stars as Earth orbits the Sun.
• C) difference between the apparent and absolute magnitudes of a star.
• D) circular or elliptical motion of a star in a binary system as the two stars orbit each other.

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Definitions:

Observational Study

A research method where outcomes are observed in a natural setting without manipulation by the researcher.

Exam Scores

Numerical values assigned to evaluate the performance of students in examinations, often used as indicators of academic achievement.

Blinding

A methodology in experimentation where information about the test is masked from the participants to reduce bias.

Five-point Scale

A method of measurement that offers five distinct options to respondents, ranging from high to low or excellent to poor, for evaluation purposes.