bar symbol is defined in arrows or better use arrows.meta library:
\begin{tikzpicture}\draw [thick, dash dot, Bar-Bar] (0,1) -- (5,1);\end{tikzpicture}edit:it seems that you looking for this:
in above image are not used Bars but drawn short vertical lines for ticks. for more concise text below number on line is used trick for reduce line spacing. so far i change font family only for text below tick labels (-1, ... 1). but this is simply change.
\documentclass[tikz, margin=3mm]{standalone}\begin{document} \begin{tikzpicture}[ LT/.style = {% Label Text text width=22mm, inner sep=0mm, outer sep=1mm, align=center, font=\small\sffamily\linespread{0.84}\selectfont, below } ]\def\faktor{4} % define distance between ticks \draw[densely dotted] (-\faktor,0) -- (\faktoe,0); \foreach \i/\j in {-1.0/strong negative relationship, -0.5/, 0.0/weak or non relationship, 0.5/, 1.0/strong positive relationship} { \draw (\faktor*\i,1mm) -- ++ (0,-2mm) node[LT] {\i \\ \j}; } \end{tikzpicture}\end{document}