This study notes covers Selection Structures within Selection (IF Statements) for GCSE Computer Science. Revise Selection (IF Statements) in 3.2 Programming for GCSE Computer Science with 15 exam-style questions and 8 flashcards. This topic shows up very often in GCSE exams, so students should be able to explain it clearly, not just recognise the term. It is section 4 of 10 in this topic. Use this study notes to connect the idea to the wider topic before moving on to questions and flashcards.
Selection Structures
| Structure | Use When | GCSE Pseudocode |
|---|---|---|
| IF | Single condition | if condition then...endif |
| IF-ELSE | Two alternatives | if...then...else...endif |
| IF-ELSEIF-ELSE | Multiple conditions | if...then...elseif...else...endif |
| SWITCH/CASE | Many specific values | switch...case...default...endswitch |
Practice questions for Selection (IF Statements)
Which programming construct is used to make a decision based on a condition?
Explain the difference between using ELSEIF and using nested IF statements to test multiple conditions.
Quick recall flashcards
When use SWITCH?
Comparing one variable against many specific values
When use ELSEIF?
When you have multiple conditions to check