question_cbm Class Reference

Static Public Member Functions
static	default_certainty ()
static	adjust_fraction ($fraction, $certainty)
static	get_string ($certainty)
static	summary_with_certainty ($summary, $certainty)
Data Fields
const	LOW = 1
const	MED = 2
const	HIGH = 3
Static Public Attributes
static	$certainties = array(self::LOW, self::MED, self::HIGH)
Static Protected Attributes
static	$factor
static	$offset

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Detailed Description

This helper class contains the constants and methods required for manipulating scores for certainly based marking.

Copyright:

2009 The Open University http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later

Definition at line 617 of file behaviourbase.php.

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Member Function Documentation

static adjust_fraction	(	$	fraction,
		$	certainty
	)		[static]

Given a fraction, and a certainly, compute the adjusted fraction.

Parameters:

number	$fraction	the raw fraction for this question.
int	$certainty	one of the certainly level constants.

Returns:

number the adjusted fraction taking the certainly into account.

Definition at line 654 of file behaviourbase.php.

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static default_certainty

(

)

[static]

#@-

Returns:

int the default certaintly level that should be assuemd if the student does not choose one.

Definition at line 644 of file behaviourbase.php.

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static get_string

(

$

certainty

)

[static]

Parameters:

int

$certainty

one of the LOW/MED/HIGH constants.

Returns:

string a textual desciption of this certainly.

Definition at line 662 of file behaviourbase.php.

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static summary_with_certainty	(	$	summary,
		$	certainty
	)		[static]

Definition at line 666 of file behaviourbase.php.

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Field Documentation

$certainties = array(self::LOW, self::MED, self::HIGH) [static]

Definition at line 625 of file behaviourbase.php.

$factor [static, protected]

Initial value:

 array(
        self::LOW => 0.333333333333333,
        self::MED => 1.333333333333333,
        self::HIGH => 3,
    )

Definition at line 628 of file behaviourbase.php.

$offset [static, protected]

Initial value:

 array(
        self::LOW => 0,
        self::MED => -0.666666666666667,
        self::HIGH => -2,
    )

Definition at line 633 of file behaviourbase.php.

const HIGH = 3

Definition at line 621 of file behaviourbase.php.

const LOW = 1

Definition at line 619 of file behaviourbase.php.

const MED = 2

Definition at line 620 of file behaviourbase.php.

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The documentation for this class was generated from the following file:

• C:/xampp/htdocs/moodle/question/behaviour/behaviourbase.php