The test was to determine the point of subjective equality by having subjects adjust line segments to equal the length of a standard line.
Twenty-three subjects were tested in a repeated measures design with four different arrowhead angles and four line orientations.
summarizes four essential aspects of the report: the purpose of the experiment (sometimes expressed as the purpose of the report), key findings, significance and major conclusions.
The abstract often also includes a brief reference to theory or methodology.
This experiment examined the effect of line orientation and arrowhead angle on a subject’s ability to perceive line length, thereby testing the Müller-Lyer illusion.
The Müller-Lyer illusion is the classic visual illustration of the effect of the surrounding on the perceived length of a line.
Each condition was tested in six randomized trials.
The lines to be adjusted were tipped with outward pointing arrows of varying degrees of pointedness, whereas the standard lines had inward pointing arrows of the same degree.
Regardless of variations, however, the goal of lab reports remains the same: document your findings and communicate their significance.
With that in mind, we can describe the report’s format and basic components.