Capturing all text entry including keystroke timing

[angoodkind]

I’m not sure why I’m having so much trouble with this, but I’m just trying to capture the text and keystroke information in a free text entry field. For example, if a user typed “I am”, the following would be captured:

Text: "I am"
Keystroke, Keypress, KeyUp
SHIFT, 1, 3
i, 2, 3
SPACE, 4, 5
a, 6, 7
m, 8, 9

Is this straightforward to write? (Eventually I would like to display an image while they complete each trial.)

Thanks,
Adam

[jodeleeuw]

Hi Adam,

At the moment none of the included plugins will record this kind of info. You could modify the survey-text plugin to do this, or create a plugin from scratch. I think it will be relatively straightforward to write if/once you have an understanding of keyboard events in JavaScript. This tutorial looks pretty clear to me.

This is an increasingly common request that we are getting, so if you do put together a plugin to do this let us know and consider submitting a pull request!

[angoodkind]

Thanks so much Josh. I've been talking to Matt Crump, and he pointed me to an older plugin that he (and you?) had worked on: html-keyboard-multiple-response. My plan is to combine it with image-keyboard-response, since my stimuli will be pictures.

I think these two plugins have (almost) everything I need, and will be happy to submit my plugin when it's complete.

EDIT: I feel foolish; I believe Matt just left your name on there since you wrote the original plugin.

[angoodkind]

@jodeleeuw - I have a working plugin, but still need to do a lot of formatting work. Here is an MWE, though:

Which produces this output:

[
	{
		"rt": [
			1546,
			1619,
			2160,
			2444,
			2609,
			2939,
			3254,
			3569,
			3689,
			4053.0000000000005,
			4383.000000000001,
			4592,
			4713,
			4952,
			5133.000000000001,
			5433,
			5642,
			5882,
			6078,
			6557,
			6769,
			7097,
			7381,
			7620.000000000001,
			7818,
			8521,
			13635.000000000002
		],
		"stimulus": "img/green-blue-bus.png",
		"key_press": [
			16,
			73,
			32,
			65,
			77,
			32,
			84,
			89,
			80,
			73,
			78,
			71,
			32,
			84,
			72,
			73,
			83,
			32,
			83,
			69,
			78,
			84,
			69,
			78,
			67,
			69,
			91
		],
		"key_name": [
			"\u0010",
			"I",
			" ",
			"A",
			"M",
			" ",
			"T",
			"Y",
			"P",
			"I",
			"N",
			"G",
			" ",
			"T",
			"H",
			"I",
			"S",
			" ",
			"S",
			"E",
			"N",
			"T",
			"E",
			"N",
			"C",
			"E",
			"["
		],
		"color": "green-blue",
		"trial_type": "image-keyboard-multiple-response",
		"trial_index": 0,
		"time_elapsed": 116705,
		"internal_node_id": "0.0-0.0-0.0"
	}
]

[angoodkind]

I have resolved this issue.