IB IA Analysis

match the definition and example to the data type

Groups:

(a) nominal

,

(b) ordinal

,

(c) interval/ratio

• 
• 
• 
• 
• 
• categorical data which can be ranked from lowest to highest

• 
• qualitativley labelling a variable

• measured on a numerical scale with equal value between numbers

Match the following description a measurements of central tendency to their description.

• median

• 
• mean

• order the data from smallest to largest and find the middle value.

• mode

• most common result

Why would this graph not score full marks?

• the graph does not have a title

• the Y-axis is incorrectly labelled

• the scale of the Y-axis is incorrect

• the bars are touching

Why would this graph not score full marks?

• there are too many bars (conditions) being compared

• the Y-axis is incorrectly labelled

• the scale of the Y-axis is incorrect

• the bars are touching

Why is this graph not appropriate for an IA?

• the scale does not start at 0

• there are too many variables being compared

• the graph does not have a title

• the axis are not correctly labelled

what is an issue with this students analysis section?

• they have note included a table and graph

• they have included their raw data in the IA's main body rather than the appendix

• they have not shown their calculations in the appendix

• multiple measures of dispersion were selected rather than just one

Where should the following go?

Groups:

(a) Analysis Section

,

(b) Introdcution

,

(c) Appendix

,

(d) Exploration

• description of relevant theory

• explanation of sampling method used

• raw data

• interpretation of inferential statistics

• description of IV and DV

• calculations

• hypothesis

• graph comapring measures of central tendency

• explanations of control variables

• copy of consent form