According to standard graphing conventions, how should the spacing between vertical bars be handled depending on the type of variable being graphed?

In standard graphing conventions, leaving a small space between the vertical bars of a histogram indicates that the graphed variable is categorical rather than quantitative.

Analyze the visual conventions used in histogram construction. Match each variable type or visual feature to its corresponding standard practice or logical implication based on research methods guidelines.

A researcher is finalizing a report on 'Reaction Time' ($RT$) in milliseconds and has drafted a frequency chart where the vertical bars are separated by small gaps. Arrange the logical steps a peer reviewer should take to evaluate the methodological soundness of this visual representation.

A research team is designing a visual display for a new study. They have collected two separate datasets: (1) participants' scores on a standardized anxiety scale measured in whole-number points, and (2) participants' reported preferred therapy format (Individual, Group, or Online). They plan to produce one frequency chart for each dataset. Which of the following design plans correctly applies standard histogram construction conventions for both charts?

According to standard graphing conventions in psychology research, the vertical bars representing a quantitative variable in a histogram should typically be drawn with small gaps between them to separate the data points.

A psychologist is constructing a histogram to display the 'Primary Coping Strategy' (e.g., Problem-Solving, Avoidance, or Social Support) reported by participants. According to standard graphing conventions, the researcher should leave small _____ between the vertical bars.

A researcher is graphing two variables from a study: 'reaction time in milliseconds' and 'preferred type of therapy' (Cognitive Behavioral, Psychodynamic, Humanistic). Describe how the researcher should apply standard graphing conventions regarding bar spacing when constructing histograms for each of these variables, and explain the rationale for the difference.

Analyze the spacing of the bars in both of Dr. Lopez's student's figures. Diagnose the errors in the visual representations of these variables according to standard graphing conventions, and justify the corrections that must be made for each figure.

A peer reviewer argues that all frequency charts showing vertical bars should have small gaps between the bars to make them easier to read, regardless of whether the variable is quantitative or categorical. Evaluate the validity of this peer reviewer's argument based on standard graphing conventions in psychological research.