Lab 3: Microscopy & Measurements; Data Presentation

Question 1

Can you accept or reject a hypothesis based on a figure?

Answer 1

no

Question 2

Is a caption above or below an image figure?

Answer 2

below

Question 3

What are the requirements for an image figure?

Answer 3

• caption is below the figure
• date and time is embedded in picture
• Scale bar is clearly shown
  -Magnification as printed must be calculated after the figure is printed and written in. This is the only acceptable handwritten part of a figure caption.
  -figure is numbered in sequence

Question 4

what are the requirements of a multi image figure?

Answer 4

-same requirements as a single image figure
-each photo is identified as A B…
-the caption reference and explaines each image

Question 5

is the caption above or below tables?

Answer 5

above

Question 6

What are the requirements for a table?

Answer 6

A table is a concise presentation of data, often shown as a list in columns. Tables can
also be the output of a data analysis such as a t-test. An example of a properly formatted table is shown below. Tables all have the following features:
* An explanatory caption that clearly indicates what information is in the table; note the caption
does not begin with “This table shows . . .” or any other similar language.
* Caption is above the table
* Table captions are numbered in sequence (this is the 4 th table in the lab manual)
* Numerical values are shown to the hundredth (0.01) place, or in scientific notation as appropriate
* Data columns are not separated by vertical lines.

Question 7

For graphs is the caption above or below the figure?

Answer 7

below

Question 8

graph requirements

Answer 8

Graphs are a type of figure. A good graph is a snapshot summary of data that allows a
reader to see the significance of key experimental data at a glance. Proper labeling of a graph or
table insures that your message is clearly conveyed. The most effective graph for the kinds of
data we collect in this class is a Column (or Bar) Graph. A properly presented graph will have
the following:
* An explanatory caption that provides brief interpretation of what the graph shows; note the
caption does not begin with “This graph shows . . .” or any other similar language.
* Caption is below the figure
* Figure caption is numbered in sequence
* There is no title at the top
* Use the x-axis (horizontal axis or abscissa) for the independent variable (cause)
* Use the y-axis (vertical axis or ordinate) for the dependent variable (resulting effect)
* Label each axis and make sure units of measure are clearly shown
* Axes are scaled appropriately and use a sensible number of decimal places
* Insert a notation in your caption indicating the sample size (n) for each group (i.e., the number of
samples used to calculate the mean for each group); n can be shown in the caption or directly in
the bars of your graph.
* Column (or Bar) Graphs show standard error bars.
Column (or Bar) Graphs are especially good for comparing mean values of experimental groups.
They are also used for data that have discrete categories (e.g., male, female, infant, juvenile,
adult). Vertical bars are generally used for presentation of biological data.

Question 9

Photographic Magnification as Printed equation?

Answer 9

magnification = measured length of scale bar
÷ stated length of scale bar